Home / 28,408,068.80-42,612,103.20-18,204,401.60

Finding the Fourth Proportional to 28,408,068.80, 42,612,103.20 and 18,204,401.60

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Solution

The fourth proportional to 28,408,068.80, 42,612,103.20 and 18,204,401.60 is: 27,306,602.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,408,068.80 : 42,612,103.20 = 18,204,401.60 : x
  2. Step 2: Convert to fraction form
    28,408,068.80/42,612,103.20 = 18,204,401.60/x
  3. Step 3: Cross multiply
    28,408,068.80x = 42,612,103.20 × 18,204,401.60
  4. Step 4: Simplify right side
    28,408,068.80x = 775,727,839,673,445.25
  5. Step 5: Solve for x
    x = 775,727,839,673,445.25/28,408,068.80
  6. Step 6: Final answer
    x = 27,306,602.40

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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.