Home / 123,160,310.30-169,961,678.63-66,645,056.72

Finding the Fourth Proportional to 123,160,310.30, 169,961,678.63 and 66,645,056.72

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Solution

The fourth proportional to 123,160,310.30, 169,961,678.63 and 66,645,056.72 is: 91,970,422.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,160,310.30 : 169,961,678.63 = 66,645,056.72 : x
  2. Step 2: Convert to fraction form
    123,160,310.30/169,961,678.63 = 66,645,056.72/x
  3. Step 3: Cross multiply
    123,160,310.30x = 169,961,678.63 × 66,645,056.72
  4. Step 4: Simplify right side
    123,160,310.30x = 11,327,105,711,339,728
  5. Step 5: Solve for x
    x = 11,327,105,711,339,728/123,160,310.30
  6. Step 6: Final answer
    x = 91,970,422.00

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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.