Home / 123,553,560.22-170,583,783.70-76,560,499.78

Finding the Fourth Proportional to 123,553,560.22, 170,583,783.70 and 76,560,499.78

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Solution

The fourth proportional to 123,553,560.22, 170,583,783.70 and 76,560,499.78 is: 105,702,981.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,553,560.22 : 170,583,783.70 = 76,560,499.78 : x
  2. Step 2: Convert to fraction form
    123,553,560.22/170,583,783.70 = 76,560,499.78/x
  3. Step 3: Cross multiply
    123,553,560.22x = 170,583,783.70 × 76,560,499.78
  4. Step 4: Simplify right side
    123,553,560.22x = 13,059,979,734,435,416
  5. Step 5: Solve for x
    x = 13,059,979,734,435,416/123,553,560.22
  6. Step 6: Final answer
    x = 105,702,981.86

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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.