Home / 12,221,421.70-18,332,132.55-6,153,808.90

Finding the Fourth Proportional to 12,221,421.70, 18,332,132.55 and 6,153,808.90

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Solution

The fourth proportional to 12,221,421.70, 18,332,132.55 and 6,153,808.90 is: 9,230,713.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,221,421.70 : 18,332,132.55 = 6,153,808.90 : x
  2. Step 2: Convert to fraction form
    12,221,421.70/18,332,132.55 = 6,153,808.90/x
  3. Step 3: Cross multiply
    12,221,421.70x = 18,332,132.55 × 6,153,808.90
  4. Step 4: Simplify right side
    12,221,421.70x = 112,812,440,442,169.70
  5. Step 5: Solve for x
    x = 112,812,440,442,169.70/12,221,421.70
  6. Step 6: Final answer
    x = 9,230,713.35

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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.