Home / 20,657,787.30-30,960,108.90-12,562,169.40

Finding the Fourth Proportional to 20,657,787.30, 30,960,108.90 and 12,562,169.40

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Solution

The fourth proportional to 20,657,787.30, 30,960,108.90 and 12,562,169.40 is: 18,827,095.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,657,787.30 : 30,960,108.90 = 12,562,169.40 : x
  2. Step 2: Convert to fraction form
    20,657,787.30/30,960,108.90 = 12,562,169.40/x
  3. Step 3: Cross multiply
    20,657,787.30x = 30,960,108.90 × 12,562,169.40
  4. Step 4: Simplify right side
    20,657,787.30x = 388,926,132,644,247.62
  5. Step 5: Solve for x
    x = 388,926,132,644,247.62/20,657,787.30
  6. Step 6: Final answer
    x = 18,827,095.42

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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.