Home / 156,954,339.17-216,582,909.85-90,879,297.03

Finding the Fourth Proportional to 156,954,339.17, 216,582,909.85 and 90,879,297.03

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Solution

The fourth proportional to 156,954,339.17, 216,582,909.85 and 90,879,297.03 is: 125,405,278.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,954,339.17 : 216,582,909.85 = 90,879,297.03 : x
  2. Step 2: Convert to fraction form
    156,954,339.17/216,582,909.85 = 90,879,297.03/x
  3. Step 3: Cross multiply
    156,954,339.17x = 216,582,909.85 × 90,879,297.03
  4. Step 4: Simplify right side
    156,954,339.17x = 19,682,902,595,915,352
  5. Step 5: Solve for x
    x = 19,682,902,595,915,352/156,954,339.17
  6. Step 6: Final answer
    x = 125,405,278.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.