Home / 372,078,509.88-558,117,764.64-138,927,429.75

Finding the Fourth Proportional to 372,078,509.88, 558,117,764.64 and 138,927,429.75

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Solution

The fourth proportional to 372,078,509.88, 558,117,764.64 and 138,927,429.75 is: 208,391,144.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,078,509.88 : 558,117,764.64 = 138,927,429.75 : x
  2. Step 2: Convert to fraction form
    372,078,509.88/558,117,764.64 = 138,927,429.75/x
  3. Step 3: Cross multiply
    372,078,509.88x = 558,117,764.64 × 138,927,429.75
  4. Step 4: Simplify right side
    372,078,509.88x = 77,537,866,539,250,640
  5. Step 5: Solve for x
    x = 77,537,866,539,250,640/372,078,509.88
  6. Step 6: Final answer
    x = 208,391,144.56

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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.