Home / 99,291,889.20-148,937,833.80-68,680,887.60

Finding the Fourth Proportional to 99,291,889.20, 148,937,833.80 and 68,680,887.60

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Solution

The fourth proportional to 99,291,889.20, 148,937,833.80 and 68,680,887.60 is: 103,021,331.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,291,889.20 : 148,937,833.80 = 68,680,887.60 : x
  2. Step 2: Convert to fraction form
    99,291,889.20/148,937,833.80 = 68,680,887.60/x
  3. Step 3: Cross multiply
    99,291,889.20x = 148,937,833.80 × 68,680,887.60
  4. Step 4: Simplify right side
    99,291,889.20x = 10,229,182,622,605,280
  5. Step 5: Solve for x
    x = 10,229,182,622,605,280/99,291,889.20
  6. Step 6: Final answer
    x = 103,021,331.40

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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.