Home / 18,118,098-25,003,150.20-9,969,510.96

Finding the Fourth Proportional to 18,118,098, 25,003,150.20 and 9,969,510.96

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Solution

The fourth proportional to 18,118,098, 25,003,150.20 and 9,969,510.96 is: 13,758,021.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118,098 : 25,003,150.20 = 9,969,510.96 : x
  2. Step 2: Convert to fraction form
    18,118,098/25,003,150.20 = 9,969,510.96/x
  3. Step 3: Cross multiply
    18,118,098x = 25,003,150.20 × 9,969,510.96
  4. Step 4: Simplify right side
    18,118,098x = 249,269,179,953,426.22
  5. Step 5: Solve for x
    x = 249,269,179,953,426.22/18,118,098
  6. Step 6: Final answer
    x = 13,758,021.40

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Double scale
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Similar ratio
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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.