Home / 141,782,656.80-212,248,832.40-84,245,311.20

Finding the Fourth Proportional to 141,782,656.80, 212,248,832.40 and 84,245,311.20

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Solution

The fourth proportional to 141,782,656.80, 212,248,832.40 and 84,245,311.20 is: 126,115,346.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,782,656.80 : 212,248,832.40 = 84,245,311.20 : x
  2. Step 2: Convert to fraction form
    141,782,656.80/212,248,832.40 = 84,245,311.20/x
  3. Step 3: Cross multiply
    141,782,656.80x = 212,248,832.40 × 84,245,311.20
  4. Step 4: Simplify right side
    141,782,656.80x = 17,880,968,937,374,644
  5. Step 5: Solve for x
    x = 17,880,968,937,374,644/141,782,656.80
  6. Step 6: Final answer
    x = 126,115,346.83

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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.