Home / 448,632,640.20-619,441,140.78-289,956,702

Finding the Fourth Proportional to 448,632,640.20, 619,441,140.78 and 289,956,702

Calculator

Solution

The fourth proportional to 448,632,640.20, 619,441,140.78 and 289,956,702 is: 400,352,302.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,632,640.20 : 619,441,140.78 = 289,956,702 : x
  2. Step 2: Convert to fraction form
    448,632,640.20/619,441,140.78 = 289,956,702/x
  3. Step 3: Cross multiply
    448,632,640.20x = 619,441,140.78 × 289,956,702
  4. Step 4: Simplify right side
    448,632,640.20x = 179,611,110,263,686,496
  5. Step 5: Solve for x
    x = 179,611,110,263,686,496/448,632,640.20
  6. Step 6: Final answer
    x = 400,352,302.02

Related Problems

Find fourth proportional to 224,316,320.10, 309,720,570.39 and 144,978,351
Half scale
Find fourth proportional to 897,265,280.40, 1,238,882,281.56 and 579,913,404
Double scale
Find fourth proportional to 448,632,641.20, 619,441,142.16 and 289,956,703
Similar ratio
Find fourth proportional to 672,948,960.30, 929,161,711.17 and 434,935,053
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.