Home / 851,478,005.40-1,277,217,008.10-759,645,000.60

Finding the Fourth Proportional to 851,478,005.40, 1,277,217,008.10 and 759,645,000.60

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Solution

The fourth proportional to 851,478,005.40, 1,277,217,008.10 and 759,645,000.60 is: 1,139,467,500.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,478,005.40 : 1,277,217,008.10 = 759,645,000.60 : x
  2. Step 2: Convert to fraction form
    851,478,005.40/1,277,217,008.10 = 759,645,000.60/x
  3. Step 3: Cross multiply
    851,478,005.40x = 1,277,217,008.10 × 759,645,000.60
  4. Step 4: Simplify right side
    851,478,005.40x = 970,231,514,884,454,656
  5. Step 5: Solve for x
    x = 970,231,514,884,454,656/851,478,005.40
  6. Step 6: Final answer
    x = 1,139,467,500.90

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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.