Home / 4,680,666.90-7,021,000.35-2,665,127.70

Finding the Fourth Proportional to 4,680,666.90, 7,021,000.35 and 2,665,127.70

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Solution

The fourth proportional to 4,680,666.90, 7,021,000.35 and 2,665,127.70 is: 3,997,691.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,680,666.90 : 7,021,000.35 = 2,665,127.70 : x
  2. Step 2: Convert to fraction form
    4,680,666.90/7,021,000.35 = 2,665,127.70/x
  3. Step 3: Cross multiply
    4,680,666.90x = 7,021,000.35 × 2,665,127.70
  4. Step 4: Simplify right side
    4,680,666.90x = 18,711,862,514,494.70
  5. Step 5: Solve for x
    x = 18,711,862,514,494.70/4,680,666.90
  6. Step 6: Final answer
    x = 3,997,691.55

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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.