Home / 20,172,330.30-30,240,124.65-7,389,752.70

Finding the Fourth Proportional to 20,172,330.30, 30,240,124.65 and 7,389,752.70

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Solution

The fourth proportional to 20,172,330.30, 30,240,124.65 and 7,389,752.70 is: 11,077,899.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,172,330.30 : 30,240,124.65 = 7,389,752.70 : x
  2. Step 2: Convert to fraction form
    20,172,330.30/30,240,124.65 = 7,389,752.70/x
  3. Step 3: Cross multiply
    20,172,330.30x = 30,240,124.65 × 7,389,752.70
  4. Step 4: Simplify right side
    20,172,330.30x = 223,467,042,780,674.06
  5. Step 5: Solve for x
    x = 223,467,042,780,674.06/20,172,330.30
  6. Step 6: Final answer
    x = 11,077,899.25

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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.