Home / 8,919,143.40-13,378,715.10-2,187,557.40

Finding the Fourth Proportional to 8,919,143.40, 13,378,715.10 and 2,187,557.40

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Solution

The fourth proportional to 8,919,143.40, 13,378,715.10 and 2,187,557.40 is: 3,281,336.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919,143.40 : 13,378,715.10 = 2,187,557.40 : x
  2. Step 2: Convert to fraction form
    8,919,143.40/13,378,715.10 = 2,187,557.40/x
  3. Step 3: Cross multiply
    8,919,143.40x = 13,378,715.10 × 2,187,557.40
  4. Step 4: Simplify right side
    8,919,143.40x = 29,266,707,219,496.74
  5. Step 5: Solve for x
    x = 29,266,707,219,496.74/8,919,143.40
  6. Step 6: Final answer
    x = 3,281,336.10

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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.