Home / 18,671,021.40-28,006,532.10-7,307,693.40

Finding the Fourth Proportional to 18,671,021.40, 28,006,532.10 and 7,307,693.40

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Solution

The fourth proportional to 18,671,021.40, 28,006,532.10 and 7,307,693.40 is: 10,961,540.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,671,021.40 : 28,006,532.10 = 7,307,693.40 : x
  2. Step 2: Convert to fraction form
    18,671,021.40/28,006,532.10 = 7,307,693.40/x
  3. Step 3: Cross multiply
    18,671,021.40x = 28,006,532.10 × 7,307,693.40
  4. Step 4: Simplify right side
    18,671,021.40x = 204,663,149,784,058.16
  5. Step 5: Solve for x
    x = 204,663,149,784,058.16/18,671,021.40
  6. Step 6: Final answer
    x = 10,961,540.10

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Similar ratio
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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.