Home / 13,429,321.70-20,148,970.12-9,328,482.05

Finding the Fourth Proportional to 13,429,321.70, 20,148,970.12 and 9,328,482.05

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Solution

The fourth proportional to 13,429,321.70, 20,148,970.12 and 9,328,482.05 is: 13,996,187.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,429,321.70 : 20,148,970.12 = 9,328,482.05 : x
  2. Step 2: Convert to fraction form
    13,429,321.70/20,148,970.12 = 9,328,482.05/x
  3. Step 3: Cross multiply
    13,429,321.70x = 20,148,970.12 × 9,328,482.05
  4. Step 4: Simplify right side
    13,429,321.70x = 187,959,305,966,340.28
  5. Step 5: Solve for x
    x = 187,959,305,966,340.28/13,429,321.70
  6. Step 6: Final answer
    x = 13,996,187.61

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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.