Home / 212,729,461.48-319,127,184.32-89,908,296

Finding the Fourth Proportional to 212,729,461.48, 319,127,184.32 and 89,908,296

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Solution

The fourth proportional to 212,729,461.48, 319,127,184.32 and 89,908,296 is: 134,876,387.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,729,461.48 : 319,127,184.32 = 89,908,296 : x
  2. Step 2: Convert to fraction form
    212,729,461.48/319,127,184.32 = 89,908,296/x
  3. Step 3: Cross multiply
    212,729,461.48x = 319,127,184.32 × 89,908,296
  4. Step 4: Simplify right side
    212,729,461.48x = 28,692,181,349,489,120
  5. Step 5: Solve for x
    x = 28,692,181,349,489,120/212,729,461.48
  6. Step 6: Final answer
    x = 134,876,387.83

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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.