Home / 12,387,859.20-18,564,074.10-8,596,913.40

Finding the Fourth Proportional to 12,387,859.20, 18,564,074.10 and 8,596,913.40

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Solution

The fourth proportional to 12,387,859.20, 18,564,074.10 and 8,596,913.40 is: 12,883,076.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387,859.20 : 18,564,074.10 = 8,596,913.40 : x
  2. Step 2: Convert to fraction form
    12,387,859.20/18,564,074.10 = 8,596,913.40/x
  3. Step 3: Cross multiply
    12,387,859.20x = 18,564,074.10 × 8,596,913.40
  4. Step 4: Simplify right side
    12,387,859.20x = 159,593,737,388,882.97
  5. Step 5: Solve for x
    x = 159,593,737,388,882.97/12,387,859.20
  6. Step 6: Final answer
    x = 12,883,076.47

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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.