Home / 51,387,992.12-70,919,913.92-28,187,603.12

Finding the Fourth Proportional to 51,387,992.12, 70,919,913.92 and 28,187,603.12

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Solution

The fourth proportional to 51,387,992.12, 70,919,913.92 and 28,187,603.12 is: 38,901,352.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,387,992.12 : 70,919,913.92 = 28,187,603.12 : x
  2. Step 2: Convert to fraction form
    51,387,992.12/70,919,913.92 = 28,187,603.12/x
  3. Step 3: Cross multiply
    51,387,992.12x = 70,919,913.92 × 28,187,603.12
  4. Step 4: Simplify right side
    51,387,992.12x = 1,999,062,386,385,986
  5. Step 5: Solve for x
    x = 1,999,062,386,385,986/51,387,992.12
  6. Step 6: Final answer
    x = 38,901,352.32

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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.