Home / 372,078,507.88-558,117,761.64-138,927,427.75

Finding the Fourth Proportional to 372,078,507.88, 558,117,761.64 and 138,927,427.75

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Solution

The fourth proportional to 372,078,507.88, 558,117,761.64 and 138,927,427.75 is: 208,391,141.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,078,507.88 : 558,117,761.64 = 138,927,427.75 : x
  2. Step 2: Convert to fraction form
    372,078,507.88/558,117,761.64 = 138,927,427.75/x
  3. Step 3: Cross multiply
    372,078,507.88x = 558,117,761.64 × 138,927,427.75
  4. Step 4: Simplify right side
    372,078,507.88x = 77,537,865,006,232,816
  5. Step 5: Solve for x
    x = 77,537,865,006,232,816/372,078,507.88
  6. Step 6: Final answer
    x = 208,391,141.56

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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.