Home / 21,963,212.80-32,929,459.20-12,983,142.40

Finding the Fourth Proportional to 21,963,212.80, 32,929,459.20 and 12,983,142.40

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Solution

The fourth proportional to 21,963,212.80, 32,929,459.20 and 12,983,142.40 is: 19,465,633.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,963,212.80 : 32,929,459.20 = 12,983,142.40 : x
  2. Step 2: Convert to fraction form
    21,963,212.80/32,929,459.20 = 12,983,142.40/x
  3. Step 3: Cross multiply
    21,963,212.80x = 32,929,459.20 × 12,983,142.40
  4. Step 4: Simplify right side
    21,963,212.80x = 427,527,857,948,590.06
  5. Step 5: Solve for x
    x = 427,527,857,948,590.06/21,963,212.80
  6. Step 6: Final answer
    x = 19,465,633.82

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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.