Home / 18,683,421.90-28,025,132.85-14,904,285.90

Finding the Fourth Proportional to 18,683,421.90, 28,025,132.85 and 14,904,285.90

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Solution

The fourth proportional to 18,683,421.90, 28,025,132.85 and 14,904,285.90 is: 22,356,428.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,683,421.90 : 28,025,132.85 = 14,904,285.90 : x
  2. Step 2: Convert to fraction form
    18,683,421.90/28,025,132.85 = 14,904,285.90/x
  3. Step 3: Cross multiply
    18,683,421.90x = 28,025,132.85 × 14,904,285.90
  4. Step 4: Simplify right side
    18,683,421.90x = 417,694,592,381,881.88
  5. Step 5: Solve for x
    x = 417,694,592,381,881.88/18,683,421.90
  6. Step 6: Final answer
    x = 22,356,428.85

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Similar ratio
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1.5x scale

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.