Home / 781,148,101.20-1,170,021,540.60-473,904,344.40

Finding the Fourth Proportional to 781,148,101.20, 1,170,021,540.60 and 473,904,344.40

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Solution

The fourth proportional to 781,148,101.20, 1,170,021,540.60 and 473,904,344.40 is: 709,824,795.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,148,101.20 : 1,170,021,540.60 = 473,904,344.40 : x
  2. Step 2: Convert to fraction form
    781,148,101.20/1,170,021,540.60 = 473,904,344.40/x
  3. Step 3: Cross multiply
    781,148,101.20x = 1,170,021,540.60 × 473,904,344.40
  4. Step 4: Simplify right side
    781,148,101.20x = 554,478,291,131,920,896
  5. Step 5: Solve for x
    x = 554,478,291,131,920,896/781,148,101.20
  6. Step 6: Final answer
    x = 709,824,795.43

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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.