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Finding the Fourth Proportional to 8,312,314.40, 12,468,860.40 and 2,632,983.20

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Solution

The fourth proportional to 8,312,314.40, 12,468,860.40 and 2,632,983.20 is: 3,949,597.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,312,314.40 : 12,468,860.40 = 2,632,983.20 : x
  2. Step 2: Convert to fraction form
    8,312,314.40/12,468,860.40 = 2,632,983.20/x
  3. Step 3: Cross multiply
    8,312,314.40x = 12,468,860.40 × 2,632,983.20
  4. Step 4: Simplify right side
    8,312,314.40x = 32,830,299,956,345.29
  5. Step 5: Solve for x
    x = 32,830,299,956,345.29/8,312,314.40
  6. Step 6: Final answer
    x = 3,949,597.96

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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.