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Finding the Fourth Proportional to 7,886,964.60, 11,830,446.90 and 3,094,810.20

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Solution

The fourth proportional to 7,886,964.60, 11,830,446.90 and 3,094,810.20 is: 4,642,215.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,886,964.60 : 11,830,446.90 = 3,094,810.20 : x
  2. Step 2: Convert to fraction form
    7,886,964.60/11,830,446.90 = 3,094,810.20/x
  3. Step 3: Cross multiply
    7,886,964.60x = 11,830,446.90 × 3,094,810.20
  4. Step 4: Simplify right side
    7,886,964.60x = 36,612,987,736,678.38
  5. Step 5: Solve for x
    x = 36,612,987,736,678.38/7,886,964.60
  6. Step 6: Final answer
    x = 4,642,215.30

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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.