Home / 28,551,235.02-39,400,754.31-15,498,502.78

Finding the Fourth Proportional to 28,551,235.02, 39,400,754.31 and 15,498,502.78

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Solution

The fourth proportional to 28,551,235.02, 39,400,754.31 and 15,498,502.78 is: 21,387,960.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,551,235.02 : 39,400,754.31 = 15,498,502.78 : x
  2. Step 2: Convert to fraction form
    28,551,235.02/39,400,754.31 = 15,498,502.78/x
  3. Step 3: Cross multiply
    28,551,235.02x = 39,400,754.31 × 15,498,502.78
  4. Step 4: Simplify right side
    28,551,235.02x = 610,652,700,207,632
  5. Step 5: Solve for x
    x = 610,652,700,207,632/28,551,235.02
  6. Step 6: Final answer
    x = 21,387,960.97

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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.