Home / 127,630,749.52-176,128,042.03-78,067,482.13

Finding the Fourth Proportional to 127,630,749.52, 176,128,042.03 and 78,067,482.13

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Solution

The fourth proportional to 127,630,749.52, 176,128,042.03 and 78,067,482.13 is: 107,731,662.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,630,749.52 : 176,128,042.03 = 78,067,482.13 : x
  2. Step 2: Convert to fraction form
    127,630,749.52/176,128,042.03 = 78,067,482.13/x
  3. Step 3: Cross multiply
    127,630,749.52x = 176,128,042.03 × 78,067,482.13
  4. Step 4: Simplify right side
    127,630,749.52x = 13,749,872,773,768,914
  5. Step 5: Solve for x
    x = 13,749,872,773,768,914/127,630,749.52
  6. Step 6: Final answer
    x = 107,731,662.04

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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.