Home / 212,925,064.20-319,530,262.95-74,751,081.72

Finding the Fourth Proportional to 212,925,064.20, 319,530,262.95 and 74,751,081.72

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Solution

The fourth proportional to 212,925,064.20, 319,530,262.95 and 74,751,081.72 is: 112,176,708.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,925,064.20 : 319,530,262.95 = 74,751,081.72 : x
  2. Step 2: Convert to fraction form
    212,925,064.20/319,530,262.95 = 74,751,081.72/x
  3. Step 3: Cross multiply
    212,925,064.20x = 319,530,262.95 × 74,751,081.72
  4. Step 4: Simplify right side
    212,925,064.20x = 23,885,232,797,788,536
  5. Step 5: Solve for x
    x = 23,885,232,797,788,536/212,925,064.20
  6. Step 6: Final answer
    x = 112,176,708.21

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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.