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Finding the Fourth Proportional to 28,334,479.20, 39,743,853.60 and 28,334,479.20

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Solution

The fourth proportional to 28,334,479.20, 39,743,853.60 and 28,334,479.20 is: 39,743,853.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,334,479.20 : 39,743,853.60 = 28,334,479.20 : x
  2. Step 2: Convert to fraction form
    28,334,479.20/39,743,853.60 = 28,334,479.20/x
  3. Step 3: Cross multiply
    28,334,479.20x = 39,743,853.60 × 28,334,479.20
  4. Step 4: Simplify right side
    28,334,479.20x = 1,126,121,393,157,045.25
  5. Step 5: Solve for x
    x = 1,126,121,393,157,045.25/28,334,479.20
  6. Step 6: Final answer
    x = 39,743,853.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.