Home / 20,172,329.30-30,240,123.15-7,389,751.70

Finding the Fourth Proportional to 20,172,329.30, 30,240,123.15 and 7,389,751.70

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Solution

The fourth proportional to 20,172,329.30, 30,240,123.15 and 7,389,751.70 is: 11,077,897.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,172,329.30 : 30,240,123.15 = 7,389,751.70 : x
  2. Step 2: Convert to fraction form
    20,172,329.30/30,240,123.15 = 7,389,751.70/x
  3. Step 3: Cross multiply
    20,172,329.30x = 30,240,123.15 × 7,389,751.70
  4. Step 4: Simplify right side
    20,172,329.30x = 223,467,001,455,921.84
  5. Step 5: Solve for x
    x = 223,467,001,455,921.84/20,172,329.30
  6. Step 6: Final answer
    x = 11,077,897.75

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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.