Home / 15,036,509.13-20,750,581.67-8,161,073.61

Finding the Fourth Proportional to 15,036,509.13, 20,750,581.67 and 8,161,073.61

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Solution

The fourth proportional to 15,036,509.13, 20,750,581.67 and 8,161,073.61 is: 11,262,389.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,036,509.13 : 20,750,581.67 = 8,161,073.61 : x
  2. Step 2: Convert to fraction form
    15,036,509.13/20,750,581.67 = 8,161,073.61/x
  3. Step 3: Cross multiply
    15,036,509.13x = 20,750,581.67 × 8,161,073.61
  4. Step 4: Simplify right side
    15,036,509.13x = 169,347,024,418,381.38
  5. Step 5: Solve for x
    x = 169,347,024,418,381.38/15,036,509.13
  6. Step 6: Final answer
    x = 11,262,389.62

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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.