Home / 187,472,051.25-258,655,468.01-121,287,745.05

Finding the Fourth Proportional to 187,472,051.25, 258,655,468.01 and 121,287,745.05

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Solution

The fourth proportional to 187,472,051.25, 258,655,468.01 and 121,287,745.05 is: 167,340,882.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,472,051.25 : 258,655,468.01 = 121,287,745.05 : x
  2. Step 2: Convert to fraction form
    187,472,051.25/258,655,468.01 = 121,287,745.05/x
  3. Step 3: Cross multiply
    187,472,051.25x = 258,655,468.01 × 121,287,745.05
  4. Step 4: Simplify right side
    187,472,051.25x = 31,371,738,459,785,308
  5. Step 5: Solve for x
    x = 31,371,738,459,785,308/187,472,051.25
  6. Step 6: Final answer
    x = 167,340,882.28

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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.