Home / 430,012,897,374.78-645,104,317,041.99-157,739,674,139.46

Finding the Fourth Proportional to 430,012,897,374.78, 645,104,317,041.99 and 157,739,674,139.46

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Solution

The fourth proportional to 430,012,897,374.78, 645,104,317,041.99 and 157,739,674,139.46 is: 236,640,680,727.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,012,897,374.78 : 645,104,317,041.99 = 157,739,674,139.46 : x
  2. Step 2: Convert to fraction form
    430,012,897,374.78/645,104,317,041.99 = 157,739,674,139.46/x
  3. Step 3: Cross multiply
    430,012,897,374.78x = 645,104,317,041.99 × 157,739,674,139.46
  4. Step 4: Simplify right side
    430,012,897,374.78x = 101,758,544,756,162,395,373,568
  5. Step 5: Solve for x
    x = 101,758,544,756,162,395,373,568/430,012,897,374.78
  6. Step 6: Final answer
    x = 236,640,680,727.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.