Home / 65,418,209.70-90,277,257.69-39,313,127.94

Finding the Fourth Proportional to 65,418,209.70, 90,277,257.69 and 39,313,127.94

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Solution

The fourth proportional to 65,418,209.70, 90,277,257.69 and 39,313,127.94 is: 54,252,193.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,418,209.70 : 90,277,257.69 = 39,313,127.94 : x
  2. Step 2: Convert to fraction form
    65,418,209.70/90,277,257.69 = 39,313,127.94/x
  3. Step 3: Cross multiply
    65,418,209.70x = 90,277,257.69 × 39,313,127.94
  4. Step 4: Simplify right side
    65,418,209.70x = 3,549,081,381,639,318.50
  5. Step 5: Solve for x
    x = 3,549,081,381,639,318.50/65,418,209.70
  6. Step 6: Final answer
    x = 54,252,193.66

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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.