Home / 31,521,663.70-47,282,495.55-20,751,126.10

Finding the Fourth Proportional to 31,521,663.70, 47,282,495.55 and 20,751,126.10

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Solution

The fourth proportional to 31,521,663.70, 47,282,495.55 and 20,751,126.10 is: 31,126,689.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,521,663.70 : 47,282,495.55 = 20,751,126.10 : x
  2. Step 2: Convert to fraction form
    31,521,663.70/47,282,495.55 = 20,751,126.10/x
  3. Step 3: Cross multiply
    31,521,663.70x = 47,282,495.55 × 20,751,126.10
  4. Step 4: Simplify right side
    31,521,663.70x = 981,165,027,480,738.88
  5. Step 5: Solve for x
    x = 981,165,027,480,738.88/31,521,663.70
  6. Step 6: Final answer
    x = 31,126,689.15

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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.