Home / 65,820,128.40-98,730,192.60-31,807,904.40

Finding the Fourth Proportional to 65,820,128.40, 98,730,192.60 and 31,807,904.40

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Solution

The fourth proportional to 65,820,128.40, 98,730,192.60 and 31,807,904.40 is: 47,711,856.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,820,128.40 : 98,730,192.60 = 31,807,904.40 : x
  2. Step 2: Convert to fraction form
    65,820,128.40/98,730,192.60 = 31,807,904.40/x
  3. Step 3: Cross multiply
    65,820,128.40x = 98,730,192.60 × 31,807,904.40
  4. Step 4: Simplify right side
    65,820,128.40x = 3,140,400,527,614,387
  5. Step 5: Solve for x
    x = 3,140,400,527,614,387/65,820,128.40
  6. Step 6: Final answer
    x = 47,711,856.60

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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.