Home / 51,815,909.99-77,750,764.48-21,132,999.83

Finding the Fourth Proportional to 51,815,909.99, 77,750,764.48 and 21,132,999.83

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Solution

The fourth proportional to 51,815,909.99, 77,750,764.48 and 21,132,999.83 is: 31,710,470.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,815,909.99 : 77,750,764.48 = 21,132,999.83 : x
  2. Step 2: Convert to fraction form
    51,815,909.99/77,750,764.48 = 21,132,999.83/x
  3. Step 3: Cross multiply
    51,815,909.99x = 77,750,764.48 × 21,132,999.83
  4. Step 4: Simplify right side
    51,815,909.99x = 1,643,106,892,861,653
  5. Step 5: Solve for x
    x = 1,643,106,892,861,653/51,815,909.99
  6. Step 6: Final answer
    x = 31,710,470.65

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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.