Home / 34,778,853.70-52,168,280.55-20,418,136.90

Finding the Fourth Proportional to 34,778,853.70, 52,168,280.55 and 20,418,136.90

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Solution

The fourth proportional to 34,778,853.70, 52,168,280.55 and 20,418,136.90 is: 30,627,205.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,778,853.70 : 52,168,280.55 = 20,418,136.90 : x
  2. Step 2: Convert to fraction form
    34,778,853.70/52,168,280.55 = 20,418,136.90/x
  3. Step 3: Cross multiply
    34,778,853.70x = 52,168,280.55 × 20,418,136.90
  4. Step 4: Simplify right side
    34,778,853.70x = 1,065,179,094,107,507.12
  5. Step 5: Solve for x
    x = 1,065,179,094,107,507.12/34,778,853.70
  6. Step 6: Final answer
    x = 30,627,205.35

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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.