Home / 13,142,089.44-18,153,834.48-9,903,385.44

Finding the Fourth Proportional to 13,142,089.44, 18,153,834.48 and 9,903,385.44

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Solution

The fourth proportional to 13,142,089.44, 18,153,834.48 and 9,903,385.44 is: 13,680,048.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,142,089.44 : 18,153,834.48 = 9,903,385.44 : x
  2. Step 2: Convert to fraction form
    13,142,089.44/18,153,834.48 = 9,903,385.44/x
  3. Step 3: Cross multiply
    13,142,089.44x = 18,153,834.48 × 9,903,385.44
  4. Step 4: Simplify right side
    13,142,089.44x = 179,784,420,069,401.97
  5. Step 5: Solve for x
    x = 179,784,420,069,401.97/13,142,089.44
  6. Step 6: Final answer
    x = 13,680,048.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.