Home / 20,761,337.70-31,142,006.55-19,565,595.45

Finding the Fourth Proportional to 20,761,337.70, 31,142,006.55 and 19,565,595.45

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Solution

The fourth proportional to 20,761,337.70, 31,142,006.55 and 19,565,595.45 is: 29,348,393.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,761,337.70 : 31,142,006.55 = 19,565,595.45 : x
  2. Step 2: Convert to fraction form
    20,761,337.70/31,142,006.55 = 19,565,595.45/x
  3. Step 3: Cross multiply
    20,761,337.70x = 31,142,006.55 × 19,565,595.45
  4. Step 4: Simplify right side
    20,761,337.70x = 609,311,901,658,550.25
  5. Step 5: Solve for x
    x = 609,311,901,658,550.25/20,761,337.70
  6. Step 6: Final answer
    x = 29,348,393.18

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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.