Home / 12,781,891.99-17,639,446.20-7,559,377

Finding the Fourth Proportional to 12,781,891.99, 17,639,446.20 and 7,559,377

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Solution

The fourth proportional to 12,781,891.99, 17,639,446.20 and 7,559,377 is: 10,432,197.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781,891.99 : 17,639,446.20 = 7,559,377 : x
  2. Step 2: Convert to fraction form
    12,781,891.99/17,639,446.20 = 7,559,377/x
  3. Step 3: Cross multiply
    12,781,891.99x = 17,639,446.20 × 7,559,377
  4. Step 4: Simplify right side
    12,781,891.99x = 133,343,223,897,017.39
  5. Step 5: Solve for x
    x = 133,343,223,897,017.39/12,781,891.99
  6. Step 6: Final answer
    x = 10,432,197.67

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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.