Home / 485,273,338.40-727,910,007.60-322,014,663.20

Finding the Fourth Proportional to 485,273,338.40, 727,910,007.60 and 322,014,663.20

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Solution

The fourth proportional to 485,273,338.40, 727,910,007.60 and 322,014,663.20 is: 483,021,994.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,273,338.40 : 727,910,007.60 = 322,014,663.20 : x
  2. Step 2: Convert to fraction form
    485,273,338.40/727,910,007.60 = 322,014,663.20/x
  3. Step 3: Cross multiply
    485,273,338.40x = 727,910,007.60 × 322,014,663.20
  4. Step 4: Simplify right side
    485,273,338.40x = 234,397,695,937,223,424
  5. Step 5: Solve for x
    x = 234,397,695,937,223,424/485,273,338.40
  6. Step 6: Final answer
    x = 483,021,994.80

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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.