Home / 212,729,454.74-319,127,174.20-89,908,289.24

Finding the Fourth Proportional to 212,729,454.74, 319,127,174.20 and 89,908,289.24

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Solution

The fourth proportional to 212,729,454.74, 319,127,174.20 and 89,908,289.24 is: 134,876,377.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,729,454.74 : 319,127,174.20 = 89,908,289.24 : x
  2. Step 2: Convert to fraction form
    212,729,454.74/319,127,174.20 = 89,908,289.24/x
  3. Step 3: Cross multiply
    212,729,454.74x = 319,127,174.20 × 89,908,289.24
  4. Step 4: Simplify right side
    212,729,454.74x = 28,692,178,282,317,464
  5. Step 5: Solve for x
    x = 28,692,178,282,317,464/212,729,454.74
  6. Step 6: Final answer
    x = 134,876,377.69

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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.