Home / 19,584,340.80-29,376,511.20-12,403,982.40

Finding the Fourth Proportional to 19,584,340.80, 29,376,511.20 and 12,403,982.40

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Solution

The fourth proportional to 19,584,340.80, 29,376,511.20 and 12,403,982.40 is: 18,605,973.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,584,340.80 : 29,376,511.20 = 12,403,982.40 : x
  2. Step 2: Convert to fraction form
    19,584,340.80/29,376,511.20 = 12,403,982.40/x
  3. Step 3: Cross multiply
    19,584,340.80x = 29,376,511.20 × 12,403,982.40
  4. Step 4: Simplify right side
    19,584,340.80x = 364,385,727,898,202.88
  5. Step 5: Solve for x
    x = 364,385,727,898,202.88/19,584,340.80
  6. Step 6: Final answer
    x = 18,605,973.60

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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.