Home / 74,889,707.20-112,334,560.80-66,379,652.80

Finding the Fourth Proportional to 74,889,707.20, 112,334,560.80 and 66,379,652.80

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Solution

The fourth proportional to 74,889,707.20, 112,334,560.80 and 66,379,652.80 is: 99,569,479.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,889,707.20 : 112,334,560.80 = 66,379,652.80 : x
  2. Step 2: Convert to fraction form
    74,889,707.20/112,334,560.80 = 66,379,652.80/x
  3. Step 3: Cross multiply
    74,889,707.20x = 112,334,560.80 × 66,379,652.80
  4. Step 4: Simplify right side
    74,889,707.20x = 7,456,729,143,344,490
  5. Step 5: Solve for x
    x = 7,456,729,143,344,490/74,889,707.20
  6. Step 6: Final answer
    x = 99,569,479.20

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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.