Home / 6,238,666.40-9,357,999.60-3,813,720.80

Finding the Fourth Proportional to 6,238,666.40, 9,357,999.60 and 3,813,720.80

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Solution

The fourth proportional to 6,238,666.40, 9,357,999.60 and 3,813,720.80 is: 5,720,581.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,238,666.40 : 9,357,999.60 = 3,813,720.80 : x
  2. Step 2: Convert to fraction form
    6,238,666.40/9,357,999.60 = 3,813,720.80/x
  3. Step 3: Cross multiply
    6,238,666.40x = 9,357,999.60 × 3,813,720.80
  4. Step 4: Simplify right side
    6,238,666.40x = 35,688,797,720,911.68
  5. Step 5: Solve for x
    x = 35,688,797,720,911.68/6,238,666.40
  6. Step 6: Final answer
    x = 5,720,581.20

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1.5x scale

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.