Home / 8,424,116.70-12,636,175.05-8,340,135.90

Finding the Fourth Proportional to 8,424,116.70, 12,636,175.05 and 8,340,135.90

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Solution

The fourth proportional to 8,424,116.70, 12,636,175.05 and 8,340,135.90 is: 12,510,203.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424,116.70 : 12,636,175.05 = 8,340,135.90 : x
  2. Step 2: Convert to fraction form
    8,424,116.70/12,636,175.05 = 8,340,135.90/x
  3. Step 3: Cross multiply
    8,424,116.70x = 12,636,175.05 × 8,340,135.90
  4. Step 4: Simplify right side
    8,424,116.70x = 105,387,417,173,189.31
  5. Step 5: Solve for x
    x = 105,387,417,173,189.31/8,424,116.70
  6. Step 6: Final answer
    x = 12,510,203.85

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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.