Home / 28,995,320.20-43,492,980.30-11,947,217.80

Finding the Fourth Proportional to 28,995,320.20, 43,492,980.30 and 11,947,217.80

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Solution

The fourth proportional to 28,995,320.20, 43,492,980.30 and 11,947,217.80 is: 17,920,826.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,995,320.20 : 43,492,980.30 = 11,947,217.80 : x
  2. Step 2: Convert to fraction form
    28,995,320.20/43,492,980.30 = 11,947,217.80/x
  3. Step 3: Cross multiply
    28,995,320.20x = 43,492,980.30 × 11,947,217.80
  4. Step 4: Simplify right side
    28,995,320.20x = 519,620,108,415,209.31
  5. Step 5: Solve for x
    x = 519,620,108,415,209.31/28,995,320.20
  6. Step 6: Final answer
    x = 17,920,826.70

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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.