Home / 7,680,492.80-11,520,739.20-7,307,244.80

Finding the Fourth Proportional to 7,680,492.80, 11,520,739.20 and 7,307,244.80

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Solution

The fourth proportional to 7,680,492.80, 11,520,739.20 and 7,307,244.80 is: 10,960,867.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680,492.80 : 11,520,739.20 = 7,307,244.80 : x
  2. Step 2: Convert to fraction form
    7,680,492.80/11,520,739.20 = 7,307,244.80/x
  3. Step 3: Cross multiply
    7,680,492.80x = 11,520,739.20 × 7,307,244.80
  4. Step 4: Simplify right side
    7,680,492.80x = 84,184,861,611,356.16
  5. Step 5: Solve for x
    x = 84,184,861,611,356.16/7,680,492.80
  6. Step 6: Final answer
    x = 10,960,867.20

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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.