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Finding the Fourth Proportional to 8,287,867.84, 12,408,428.40 and 4,388,488.96

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Solution

The fourth proportional to 8,287,867.84, 12,408,428.40 and 4,388,488.96 is: 6,570,357.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,287,867.84 : 12,408,428.40 = 4,388,488.96 : x
  2. Step 2: Convert to fraction form
    8,287,867.84/12,408,428.40 = 4,388,488.96/x
  3. Step 3: Cross multiply
    8,287,867.84x = 12,408,428.40 × 4,388,488.96
  4. Step 4: Simplify right side
    8,287,867.84x = 54,454,251,044,350.47
  5. Step 5: Solve for x
    x = 54,454,251,044,350.47/8,287,867.84
  6. Step 6: Final answer
    x = 6,570,357.07

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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.