Home / 3,105,505.72-4,287,280.08-2,178,061.66

Finding the Fourth Proportional to 3,105,505.72, 4,287,280.08 and 2,178,061.66

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Solution

The fourth proportional to 3,105,505.72, 4,287,280.08 and 2,178,061.66 is: 3,006,904.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105,505.72 : 4,287,280.08 = 2,178,061.66 : x
  2. Step 2: Convert to fraction form
    3,105,505.72/4,287,280.08 = 2,178,061.66/x
  3. Step 3: Cross multiply
    3,105,505.72x = 4,287,280.08 × 2,178,061.66
  4. Step 4: Simplify right side
    3,105,505.72x = 9,337,960,367,929.74
  5. Step 5: Solve for x
    x = 9,337,960,367,929.74/3,105,505.72
  6. Step 6: Final answer
    x = 3,006,904.90

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1.5x scale

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.