Home / 90,468,320.20-135,651,071.10-61,749,219.40

Finding the Fourth Proportional to 90,468,320.20, 135,651,071.10 and 61,749,219.40

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Solution

The fourth proportional to 90,468,320.20, 135,651,071.10 and 61,749,219.40 is: 92,588,739.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,468,320.20 : 135,651,071.10 = 61,749,219.40 : x
  2. Step 2: Convert to fraction form
    90,468,320.20/135,651,071.10 = 61,749,219.40/x
  3. Step 3: Cross multiply
    90,468,320.20x = 135,651,071.10 × 61,749,219.40
  4. Step 4: Simplify right side
    90,468,320.20x = 8,376,347,751,198,899
  5. Step 5: Solve for x
    x = 8,376,347,751,198,899/90,468,320.20
  6. Step 6: Final answer
    x = 92,588,739.71

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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.