Home / 65,354,439.19-90,023,033.05-49,857,619.63

Finding the Fourth Proportional to 65,354,439.19, 90,023,033.05 and 49,857,619.63

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Solution

The fourth proportional to 65,354,439.19, 90,023,033.05 and 49,857,619.63 is: 68,676,805.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,354,439.19 : 90,023,033.05 = 49,857,619.63 : x
  2. Step 2: Convert to fraction form
    65,354,439.19/90,023,033.05 = 49,857,619.63/x
  3. Step 3: Cross multiply
    65,354,439.19x = 90,023,033.05 × 49,857,619.63
  4. Step 4: Simplify right side
    65,354,439.19x = 4,488,334,139,745,819
  5. Step 5: Solve for x
    x = 4,488,334,139,745,819/65,354,439.19
  6. Step 6: Final answer
    x = 68,676,805.97

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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.