Home / 312,322,951.98-431,005,713.80-173,102,701.86

Finding the Fourth Proportional to 312,322,951.98, 431,005,713.80 and 173,102,701.86

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Solution

The fourth proportional to 312,322,951.98, 431,005,713.80 and 173,102,701.86 is: 238,881,750.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,322,951.98 : 431,005,713.80 = 173,102,701.86 : x
  2. Step 2: Convert to fraction form
    312,322,951.98/431,005,713.80 = 173,102,701.86/x
  3. Step 3: Cross multiply
    312,322,951.98x = 431,005,713.80 × 173,102,701.86
  4. Step 4: Simplify right side
    312,322,951.98x = 74,608,253,575,012,384
  5. Step 5: Solve for x
    x = 74,608,253,575,012,384/312,322,951.98
  6. Step 6: Final answer
    x = 238,881,750.77

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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.