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Finding the Fourth Proportional to 817,495,538.64, 1,226,231,758.44 and 380,551,834.32

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Solution

The fourth proportional to 817,495,538.64, 1,226,231,758.44 and 380,551,834.32 is: 570,822,375.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,495,538.64 : 1,226,231,758.44 = 380,551,834.32 : x
  2. Step 2: Convert to fraction form
    817,495,538.64/1,226,231,758.44 = 380,551,834.32/x
  3. Step 3: Cross multiply
    817,495,538.64x = 1,226,231,758.44 × 380,551,834.32
  4. Step 4: Simplify right side
    817,495,538.64x = 466,644,744,975,781,184
  5. Step 5: Solve for x
    x = 466,644,744,975,781,184/817,495,538.64
  6. Step 6: Final answer
    x = 570,822,375.07

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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.