Home / 20,553,658.10-30,830,487.15-12,043,603.70

Finding the Fourth Proportional to 20,553,658.10, 30,830,487.15 and 12,043,603.70

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Solution

The fourth proportional to 20,553,658.10, 30,830,487.15 and 12,043,603.70 is: 18,065,405.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,553,658.10 : 30,830,487.15 = 12,043,603.70 : x
  2. Step 2: Convert to fraction form
    20,553,658.10/30,830,487.15 = 12,043,603.70/x
  3. Step 3: Cross multiply
    20,553,658.10x = 30,830,487.15 × 12,043,603.70
  4. Step 4: Simplify right side
    20,553,658.10x = 371,310,169,112,542.44
  5. Step 5: Solve for x
    x = 371,310,169,112,542.44/20,553,658.10
  6. Step 6: Final answer
    x = 18,065,405.55

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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.