Home / 12,445,150.80-18,630,401.40-7,393,861.20

Finding the Fourth Proportional to 12,445,150.80, 18,630,401.40 and 7,393,861.20

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Solution

The fourth proportional to 12,445,150.80, 18,630,401.40 and 7,393,861.20 is: 11,068,616.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445,150.80 : 18,630,401.40 = 7,393,861.20 : x
  2. Step 2: Convert to fraction form
    12,445,150.80/18,630,401.40 = 7,393,861.20/x
  3. Step 3: Cross multiply
    12,445,150.80x = 18,630,401.40 × 7,393,861.20
  4. Step 4: Simplify right side
    12,445,150.80x = 137,750,602,051,885.67
  5. Step 5: Solve for x
    x = 137,750,602,051,885.67/12,445,150.80
  6. Step 6: Final answer
    x = 11,068,616.55

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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.