Home / 80,095,165.80-120,154,741.65-28,989,142.05

Finding the Fourth Proportional to 80,095,165.80, 120,154,741.65 and 28,989,142.05

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Solution

The fourth proportional to 80,095,165.80, 120,154,741.65 and 28,989,142.05 is: 43,488,053.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,095,165.80 : 120,154,741.65 = 28,989,142.05 : x
  2. Step 2: Convert to fraction form
    80,095,165.80/120,154,741.65 = 28,989,142.05/x
  3. Step 3: Cross multiply
    80,095,165.80x = 120,154,741.65 × 28,989,142.05
  4. Step 4: Simplify right side
    80,095,165.80x = 3,483,182,873,672,901.50
  5. Step 5: Solve for x
    x = 3,483,182,873,672,901.50/80,095,165.80
  6. Step 6: Final answer
    x = 43,488,053.73

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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.