Home / 1,312,737,320.28-1,812,135,302.46-817,944,491.64

Finding the Fourth Proportional to 1,312,737,320.28, 1,812,135,302.46 and 817,944,491.64

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Solution

The fourth proportional to 1,312,737,320.28, 1,812,135,302.46 and 817,944,491.64 is: 1,129,110,954.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,737,320.28 : 1,812,135,302.46 = 817,944,491.64 : x
  2. Step 2: Convert to fraction form
    1,312,737,320.28/1,812,135,302.46 = 817,944,491.64/x
  3. Step 3: Cross multiply
    1,312,737,320.28x = 1,812,135,302.46 × 817,944,491.64
  4. Step 4: Simplify right side
    1,312,737,320.28x = 1,482,226,088,753,542,400
  5. Step 5: Solve for x
    x = 1,482,226,088,753,542,400/1,312,737,320.28
  6. Step 6: Final answer
    x = 1,129,110,954.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.