Home / 85,162,828.72-127,670,554.32-72,293,062.72

Finding the Fourth Proportional to 85,162,828.72, 127,670,554.32 and 72,293,062.72

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Solution

The fourth proportional to 85,162,828.72, 127,670,554.32 and 72,293,062.72 is: 108,377,041.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,162,828.72 : 127,670,554.32 = 72,293,062.72 : x
  2. Step 2: Convert to fraction form
    85,162,828.72/127,670,554.32 = 72,293,062.72/x
  3. Step 3: Cross multiply
    85,162,828.72x = 127,670,554.32 × 72,293,062.72
  4. Step 4: Simplify right side
    85,162,828.72x = 9,229,695,390,952,926
  5. Step 5: Solve for x
    x = 9,229,695,390,952,926/85,162,828.72
  6. Step 6: Final answer
    x = 108,377,041.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.