Home / 20,612,000.30-30,918,000.45-13,072,390.70

Finding the Fourth Proportional to 20,612,000.30, 30,918,000.45 and 13,072,390.70

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Solution

The fourth proportional to 20,612,000.30, 30,918,000.45 and 13,072,390.70 is: 19,608,586.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,612,000.30 : 30,918,000.45 = 13,072,390.70 : x
  2. Step 2: Convert to fraction form
    20,612,000.30/30,918,000.45 = 13,072,390.70/x
  3. Step 3: Cross multiply
    20,612,000.30x = 30,918,000.45 × 13,072,390.70
  4. Step 4: Simplify right side
    20,612,000.30x = 404,172,181,545,175.81
  5. Step 5: Solve for x
    x = 404,172,181,545,175.81/20,612,000.30
  6. Step 6: Final answer
    x = 19,608,586.05

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1.5x scale

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.