Home / 645,052,248.80-966,965,391.12-411,226,606.88

Finding the Fourth Proportional to 645,052,248.80, 966,965,391.12 and 411,226,606.88

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Solution

The fourth proportional to 645,052,248.80, 966,965,391.12 and 411,226,606.88 is: 616,449,128.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,052,248.80 : 966,965,391.12 = 411,226,606.88 : x
  2. Step 2: Convert to fraction form
    645,052,248.80/966,965,391.12 = 411,226,606.88/x
  3. Step 3: Cross multiply
    645,052,248.80x = 966,965,391.12 × 411,226,606.88
  4. Step 4: Simplify right side
    645,052,248.80x = 397,641,896,760,669,696
  5. Step 5: Solve for x
    x = 397,641,896,760,669,696/645,052,248.80
  6. Step 6: Final answer
    x = 616,449,128.73

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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.