Home / 80,095,166.80-120,154,743.15-28,989,143.05

Finding the Fourth Proportional to 80,095,166.80, 120,154,743.15 and 28,989,143.05

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Solution

The fourth proportional to 80,095,166.80, 120,154,743.15 and 28,989,143.05 is: 43,488,055.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,095,166.80 : 120,154,743.15 = 28,989,143.05 : x
  2. Step 2: Convert to fraction form
    80,095,166.80/120,154,743.15 = 28,989,143.05/x
  3. Step 3: Cross multiply
    80,095,166.80x = 120,154,743.15 × 28,989,143.05
  4. Step 4: Simplify right side
    80,095,166.80x = 3,483,183,037,311,358
  5. Step 5: Solve for x
    x = 3,483,183,037,311,358/80,095,166.80
  6. Step 6: Final answer
    x = 43,488,055.23

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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.