Home / 781,148,109.20-1,170,021,552.60-473,904,352.40

Finding the Fourth Proportional to 781,148,109.20, 1,170,021,552.60 and 473,904,352.40

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Solution

The fourth proportional to 781,148,109.20, 1,170,021,552.60 and 473,904,352.40 is: 709,824,807.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,148,109.20 : 1,170,021,552.60 = 473,904,352.40 : x
  2. Step 2: Convert to fraction form
    781,148,109.20/1,170,021,552.60 = 473,904,352.40/x
  3. Step 3: Cross multiply
    781,148,109.20x = 1,170,021,552.60 × 473,904,352.40
  4. Step 4: Simplify right side
    781,148,109.20x = 554,478,306,178,945,472
  5. Step 5: Solve for x
    x = 554,478,306,178,945,472/781,148,109.20
  6. Step 6: Final answer
    x = 709,824,807.42

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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.