Home / 645,429,772.66-966,140,639.18-349,590,149.22

Finding the Fourth Proportional to 645,429,772.66, 966,140,639.18 and 349,590,149.22

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Solution

The fourth proportional to 645,429,772.66, 966,140,639.18 and 349,590,149.22 is: 523,299,767.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,429,772.66 : 966,140,639.18 = 349,590,149.22 : x
  2. Step 2: Convert to fraction form
    645,429,772.66/966,140,639.18 = 349,590,149.22/x
  3. Step 3: Cross multiply
    645,429,772.66x = 966,140,639.18 × 349,590,149.22
  4. Step 4: Simplify right side
    645,429,772.66x = 337,753,250,218,442,368
  5. Step 5: Solve for x
    x = 337,753,250,218,442,368/645,429,772.66
  6. Step 6: Final answer
    x = 523,299,767.88

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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.