Home / 7,678,870.75-11,520,200.65-2,287,500.22

Finding the Fourth Proportional to 7,678,870.75, 11,520,200.65 and 2,287,500.22

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Solution

The fourth proportional to 7,678,870.75, 11,520,200.65 and 2,287,500.22 is: 3,431,814.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,678,870.75 : 11,520,200.65 = 2,287,500.22 : x
  2. Step 2: Convert to fraction form
    7,678,870.75/11,520,200.65 = 2,287,500.22/x
  3. Step 3: Cross multiply
    7,678,870.75x = 11,520,200.65 × 2,287,500.22
  4. Step 4: Simplify right side
    7,678,870.75x = 26,352,461,521,319.14
  5. Step 5: Solve for x
    x = 26,352,461,521,319.14/7,678,870.75
  6. Step 6: Final answer
    x = 3,431,814.70

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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.