Home / 781,818,071.60-1,172,466,695.64-315,359,023.52

Finding the Fourth Proportional to 781,818,071.60, 1,172,466,695.64 and 315,359,023.52

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Solution

The fourth proportional to 781,818,071.60, 1,172,466,695.64 and 315,359,023.52 is: 472,933,493.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,818,071.60 : 1,172,466,695.64 = 315,359,023.52 : x
  2. Step 2: Convert to fraction form
    781,818,071.60/1,172,466,695.64 = 315,359,023.52/x
  3. Step 3: Cross multiply
    781,818,071.60x = 1,172,466,695.64 × 315,359,023.52
  4. Step 4: Simplify right side
    781,818,071.60x = 369,747,952,246,751,424
  5. Step 5: Solve for x
    x = 369,747,952,246,751,424/781,818,071.60
  6. Step 6: Final answer
    x = 472,933,493.96

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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.