Home / 12,421,639.80-18,633,042.90-3,902,254.20

Finding the Fourth Proportional to 12,421,639.80, 18,633,042.90 and 3,902,254.20

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Solution

The fourth proportional to 12,421,639.80, 18,633,042.90 and 3,902,254.20 is: 5,853,564.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,421,639.80 : 18,633,042.90 = 3,902,254.20 : x
  2. Step 2: Convert to fraction form
    12,421,639.80/18,633,042.90 = 3,902,254.20/x
  3. Step 3: Cross multiply
    12,421,639.80x = 18,633,042.90 × 3,902,254.20
  4. Step 4: Simplify right side
    12,421,639.80x = 72,710,869,915,305.17
  5. Step 5: Solve for x
    x = 72,710,869,915,305.17/12,421,639.80
  6. Step 6: Final answer
    x = 5,853,564.51

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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.