Home / 18,683,140.20-28,024,710.30-10,180,084.20

Finding the Fourth Proportional to 18,683,140.20, 28,024,710.30 and 10,180,084.20

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Solution

The fourth proportional to 18,683,140.20, 28,024,710.30 and 10,180,084.20 is: 15,270,126.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,683,140.20 : 28,024,710.30 = 10,180,084.20 : x
  2. Step 2: Convert to fraction form
    18,683,140.20/28,024,710.30 = 10,180,084.20/x
  3. Step 3: Cross multiply
    18,683,140.20x = 28,024,710.30 × 10,180,084.20
  4. Step 4: Simplify right side
    18,683,140.20x = 285,293,910,534,607.25
  5. Step 5: Solve for x
    x = 285,293,910,534,607.25/18,683,140.20
  6. Step 6: Final answer
    x = 15,270,126.30

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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.