Home / 12,197,472.55-18,290,323.15-7,081,190.40

Finding the Fourth Proportional to 12,197,472.55, 18,290,323.15 and 7,081,190.40

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Solution

The fourth proportional to 12,197,472.55, 18,290,323.15 and 7,081,190.40 is: 10,618,368.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,197,472.55 : 18,290,323.15 = 7,081,190.40 : x
  2. Step 2: Convert to fraction form
    12,197,472.55/18,290,323.15 = 7,081,190.40/x
  3. Step 3: Cross multiply
    12,197,472.55x = 18,290,323.15 × 7,081,190.40
  4. Step 4: Simplify right side
    12,197,472.55x = 129,517,260,702,677.75
  5. Step 5: Solve for x
    x = 129,517,260,702,677.75/12,197,472.55
  6. Step 6: Final answer
    x = 10,618,368.70

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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.