Home / 128,760,459.78-193,225,772.10-60,622,637.70

Finding the Fourth Proportional to 128,760,459.78, 193,225,772.10 and 60,622,637.70

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Solution

The fourth proportional to 128,760,459.78, 193,225,772.10 and 60,622,637.70 is: 90,974,014.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,760,459.78 : 193,225,772.10 = 60,622,637.70 : x
  2. Step 2: Convert to fraction form
    128,760,459.78/193,225,772.10 = 60,622,637.70/x
  3. Step 3: Cross multiply
    128,760,459.78x = 193,225,772.10 × 60,622,637.70
  4. Step 4: Simplify right side
    128,760,459.78x = 11,713,855,976,321,068
  5. Step 5: Solve for x
    x = 11,713,855,976,321,068/128,760,459.78
  6. Step 6: Final answer
    x = 90,974,014.82

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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.