Home / 85,293,005.40-127,939,508.10-82,901,520.90

Finding the Fourth Proportional to 85,293,005.40, 127,939,508.10 and 82,901,520.90

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Solution

The fourth proportional to 85,293,005.40, 127,939,508.10 and 82,901,520.90 is: 124,352,281.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,293,005.40 : 127,939,508.10 = 82,901,520.90 : x
  2. Step 2: Convert to fraction form
    85,293,005.40/127,939,508.10 = 82,901,520.90/x
  3. Step 3: Cross multiply
    85,293,005.40x = 127,939,508.10 × 82,901,520.90
  4. Step 4: Simplify right side
    85,293,005.40x = 10,606,379,804,687,870
  5. Step 5: Solve for x
    x = 10,606,379,804,687,870/85,293,005.40
  6. Step 6: Final answer
    x = 124,352,281.35

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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.