Home / 13,000,472.71-17,940,636.15-7,199,247.45

Finding the Fourth Proportional to 13,000,472.71, 17,940,636.15 and 7,199,247.45

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Solution

The fourth proportional to 13,000,472.71, 17,940,636.15 and 7,199,247.45 is: 9,934,952.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,000,472.71 : 17,940,636.15 = 7,199,247.45 : x
  2. Step 2: Convert to fraction form
    13,000,472.71/17,940,636.15 = 7,199,247.45/x
  3. Step 3: Cross multiply
    13,000,472.71x = 17,940,636.15 × 7,199,247.45
  4. Step 4: Simplify right side
    13,000,472.71x = 129,159,079,034,125.22
  5. Step 5: Solve for x
    x = 129,159,079,034,125.22/13,000,472.71
  6. Step 6: Final answer
    x = 9,934,952.51

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1.5x scale

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.