Home / 20,754,736.80-31,048,124.40-18,235,312.80

Finding the Fourth Proportional to 20,754,736.80, 31,048,124.40 and 18,235,312.80

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Solution

The fourth proportional to 20,754,736.80, 31,048,124.40 and 18,235,312.80 is: 27,279,182.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,754,736.80 : 31,048,124.40 = 18,235,312.80 : x
  2. Step 2: Convert to fraction form
    20,754,736.80/31,048,124.40 = 18,235,312.80/x
  3. Step 3: Cross multiply
    20,754,736.80x = 31,048,124.40 × 18,235,312.80
  4. Step 4: Simplify right side
    20,754,736.80x = 566,172,260,287,312.38
  5. Step 5: Solve for x
    x = 566,172,260,287,312.38/20,754,736.80
  6. Step 6: Final answer
    x = 27,279,182.86

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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.