Home / 28,746,781.40-43,120,172.10-18,543,114.20

Finding the Fourth Proportional to 28,746,781.40, 43,120,172.10 and 18,543,114.20

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Solution

The fourth proportional to 28,746,781.40, 43,120,172.10 and 18,543,114.20 is: 27,814,671.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,746,781.40 : 43,120,172.10 = 18,543,114.20 : x
  2. Step 2: Convert to fraction form
    28,746,781.40/43,120,172.10 = 18,543,114.20/x
  3. Step 3: Cross multiply
    28,746,781.40x = 43,120,172.10 × 18,543,114.20
  4. Step 4: Simplify right side
    28,746,781.40x = 799,582,275,573,953.88
  5. Step 5: Solve for x
    x = 799,582,275,573,953.88/28,746,781.40
  6. Step 6: Final answer
    x = 27,814,671.30

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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.