Home / 107,610,753.78-148,465,821.60-65,237,978.70

Finding the Fourth Proportional to 107,610,753.78, 148,465,821.60 and 65,237,978.70

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Solution

The fourth proportional to 107,610,753.78, 148,465,821.60 and 65,237,978.70 is: 90,005,968.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,610,753.78 : 148,465,821.60 = 65,237,978.70 : x
  2. Step 2: Convert to fraction form
    107,610,753.78/148,465,821.60 = 65,237,978.70/x
  3. Step 3: Cross multiply
    107,610,753.78x = 148,465,821.60 × 65,237,978.70
  4. Step 4: Simplify right side
    107,610,753.78x = 9,685,610,107,218,800
  5. Step 5: Solve for x
    x = 9,685,610,107,218,800/107,610,753.78
  6. Step 6: Final answer
    x = 90,005,968.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.