Home / 51,815,883-77,750,723.91-21,132,972.84

Finding the Fourth Proportional to 51,815,883, 77,750,723.91 and 21,132,972.84

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Solution

The fourth proportional to 51,815,883, 77,750,723.91 and 21,132,972.84 is: 31,710,430.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,815,883 : 77,750,723.91 = 21,132,972.84 : x
  2. Step 2: Convert to fraction form
    51,815,883/77,750,723.91 = 21,132,972.84/x
  3. Step 3: Cross multiply
    51,815,883x = 77,750,723.91 × 21,132,972.84
  4. Step 4: Simplify right side
    51,815,883x = 1,643,103,936,680,368.50
  5. Step 5: Solve for x
    x = 1,643,103,936,680,368.50/51,815,883
  6. Step 6: Final answer
    x = 31,710,430.11

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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.