Home / 19,960,006.80-29,940,010.20-7,180,928.40

Finding the Fourth Proportional to 19,960,006.80, 29,940,010.20 and 7,180,928.40

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Solution

The fourth proportional to 19,960,006.80, 29,940,010.20 and 7,180,928.40 is: 10,771,392.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,960,006.80 : 29,940,010.20 = 7,180,928.40 : x
  2. Step 2: Convert to fraction form
    19,960,006.80/29,940,010.20 = 7,180,928.40/x
  3. Step 3: Cross multiply
    19,960,006.80x = 29,940,010.20 × 7,180,928.40
  4. Step 4: Simplify right side
    19,960,006.80x = 214,997,069,541,469.69
  5. Step 5: Solve for x
    x = 214,997,069,541,469.69/19,960,006.80
  6. Step 6: Final answer
    x = 10,771,392.60

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1.5x scale

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.