Home / 74,727,479.46-112,087,231.56-20,139,189.15

Finding the Fourth Proportional to 74,727,479.46, 112,087,231.56 and 20,139,189.15

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Solution

The fourth proportional to 74,727,479.46, 112,087,231.56 and 20,139,189.15 is: 30,207,709.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,727,479.46 : 112,087,231.56 = 20,139,189.15 : x
  2. Step 2: Convert to fraction form
    74,727,479.46/112,087,231.56 = 20,139,189.15/x
  3. Step 3: Cross multiply
    74,727,479.46x = 112,087,231.56 × 20,139,189.15
  4. Step 4: Simplify right side
    74,727,479.46x = 2,257,345,957,686,689.50
  5. Step 5: Solve for x
    x = 2,257,345,957,686,689.50/74,727,479.46
  6. Step 6: Final answer
    x = 30,207,709.05

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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.