Home / 28,025,478.86-38,675,184.89-15,635,574.20

Finding the Fourth Proportional to 28,025,478.86, 38,675,184.89 and 15,635,574.20

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Solution

The fourth proportional to 28,025,478.86, 38,675,184.89 and 15,635,574.20 is: 21,577,105.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,025,478.86 : 38,675,184.89 = 15,635,574.20 : x
  2. Step 2: Convert to fraction form
    28,025,478.86/38,675,184.89 = 15,635,574.20/x
  3. Step 3: Cross multiply
    28,025,478.86x = 38,675,184.89 × 15,635,574.20
  4. Step 4: Simplify right side
    28,025,478.86x = 604,708,723,064,823.88
  5. Step 5: Solve for x
    x = 604,708,723,064,823.88/28,025,478.86
  6. Step 6: Final answer
    x = 21,577,105.83

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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.