Home / 161,725,157.31-242,490,637.20-74,177,006.28

Finding the Fourth Proportional to 161,725,157.31, 242,490,637.20 and 74,177,006.28

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Solution

The fourth proportional to 161,725,157.31, 242,490,637.20 and 74,177,006.28 is: 111,220,974.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,725,157.31 : 242,490,637.20 = 74,177,006.28 : x
  2. Step 2: Convert to fraction form
    161,725,157.31/242,490,637.20 = 74,177,006.28/x
  3. Step 3: Cross multiply
    161,725,157.31x = 242,490,637.20 × 74,177,006.28
  4. Step 4: Simplify right side
    161,725,157.31x = 17,987,229,517,794,428
  5. Step 5: Solve for x
    x = 17,987,229,517,794,428/161,725,157.31
  6. Step 6: Final answer
    x = 111,220,974.01

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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.