Home / 212,729,449.91-319,127,166.98-89,908,284.43

Finding the Fourth Proportional to 212,729,449.91, 319,127,166.98 and 89,908,284.43

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Solution

The fourth proportional to 212,729,449.91, 319,127,166.98 and 89,908,284.43 is: 134,876,370.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,729,449.91 : 319,127,166.98 = 89,908,284.43 : x
  2. Step 2: Convert to fraction form
    212,729,449.91/319,127,166.98 = 89,908,284.43/x
  3. Step 3: Cross multiply
    212,729,449.91x = 319,127,166.98 × 89,908,284.43
  4. Step 4: Simplify right side
    212,729,449.91x = 28,692,176,097,604,896
  5. Step 5: Solve for x
    x = 28,692,176,097,604,896/212,729,449.91
  6. Step 6: Final answer
    x = 134,876,370.48

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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.