Home / 51,539,655.12-71,125,131.72-28,018,187.16

Finding the Fourth Proportional to 51,539,655.12, 71,125,131.72 and 28,018,187.16

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Solution

The fourth proportional to 51,539,655.12, 71,125,131.72 and 28,018,187.16 is: 38,665,319.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,539,655.12 : 71,125,131.72 = 28,018,187.16 : x
  2. Step 2: Convert to fraction form
    51,539,655.12/71,125,131.72 = 28,018,187.16/x
  3. Step 3: Cross multiply
    51,539,655.12x = 71,125,131.72 × 28,018,187.16
  4. Step 4: Simplify right side
    51,539,655.12x = 1,992,797,252,310,612.75
  5. Step 5: Solve for x
    x = 1,992,797,252,310,612.75/51,539,655.12
  6. Step 6: Final answer
    x = 38,665,319.89

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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.