Home / 52,317,065.85-78,475,810.29-21,193,311.74

Finding the Fourth Proportional to 52,317,065.85, 78,475,810.29 and 21,193,311.74

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Solution

The fourth proportional to 52,317,065.85, 78,475,810.29 and 21,193,311.74 is: 31,790,053.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,317,065.85 : 78,475,810.29 = 21,193,311.74 : x
  2. Step 2: Convert to fraction form
    52,317,065.85/78,475,810.29 = 21,193,311.74/x
  3. Step 3: Cross multiply
    52,317,065.85x = 78,475,810.29 × 21,193,311.74
  4. Step 4: Simplify right side
    52,317,065.85x = 1,663,162,311,132,690.75
  5. Step 5: Solve for x
    x = 1,663,162,311,132,690.75/52,317,065.85
  6. Step 6: Final answer
    x = 31,790,053.29

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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.