Home / 20,124,139.80-30,186,209.70-14,497,426.20

Finding the Fourth Proportional to 20,124,139.80, 30,186,209.70 and 14,497,426.20

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Solution

The fourth proportional to 20,124,139.80, 30,186,209.70 and 14,497,426.20 is: 21,746,139.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,124,139.80 : 30,186,209.70 = 14,497,426.20 : x
  2. Step 2: Convert to fraction form
    20,124,139.80/30,186,209.70 = 14,497,426.20/x
  3. Step 3: Cross multiply
    20,124,139.80x = 30,186,209.70 × 14,497,426.20
  4. Step 4: Simplify right side
    20,124,139.80x = 437,622,347,383,474.12
  5. Step 5: Solve for x
    x = 437,622,347,383,474.12/20,124,139.80
  6. Step 6: Final answer
    x = 21,746,139.30

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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.