Home / 77,291,521.20-115,937,281.80-73,974,279.60

Finding the Fourth Proportional to 77,291,521.20, 115,937,281.80 and 73,974,279.60

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Solution

The fourth proportional to 77,291,521.20, 115,937,281.80 and 73,974,279.60 is: 110,961,419.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,291,521.20 : 115,937,281.80 = 73,974,279.60 : x
  2. Step 2: Convert to fraction form
    77,291,521.20/115,937,281.80 = 73,974,279.60/x
  3. Step 3: Cross multiply
    77,291,521.20x = 115,937,281.80 × 73,974,279.60
  4. Step 4: Simplify right side
    77,291,521.20x = 8,576,376,899,937,190
  5. Step 5: Solve for x
    x = 8,576,376,899,937,190/77,291,521.20
  6. Step 6: Final answer
    x = 110,961,419.40

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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.