Home / 12,591,834.80-18,887,752.20-4,078,281.20

Finding the Fourth Proportional to 12,591,834.80, 18,887,752.20 and 4,078,281.20

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Solution

The fourth proportional to 12,591,834.80, 18,887,752.20 and 4,078,281.20 is: 6,117,421.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,591,834.80 : 18,887,752.20 = 4,078,281.20 : x
  2. Step 2: Convert to fraction form
    12,591,834.80/18,887,752.20 = 4,078,281.20/x
  3. Step 3: Cross multiply
    12,591,834.80x = 18,887,752.20 × 4,078,281.20
  4. Step 4: Simplify right side
    12,591,834.80x = 77,029,564,707,518.64
  5. Step 5: Solve for x
    x = 77,029,564,707,518.64/12,591,834.80
  6. Step 6: Final answer
    x = 6,117,421.80

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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.