Home / 65,698,821.46-90,664,960.78-36,332,129.70

Finding the Fourth Proportional to 65,698,821.46, 90,664,960.78 and 36,332,129.70

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Solution

The fourth proportional to 65,698,821.46, 90,664,960.78 and 36,332,129.70 is: 50,138,663.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,698,821.46 : 90,664,960.78 = 36,332,129.70 : x
  2. Step 2: Convert to fraction form
    65,698,821.46/90,664,960.78 = 36,332,129.70/x
  3. Step 3: Cross multiply
    65,698,821.46x = 90,664,960.78 × 36,332,129.70
  4. Step 4: Simplify right side
    65,698,821.46x = 3,294,051,114,304,373.50
  5. Step 5: Solve for x
    x = 3,294,051,114,304,373.50/65,698,821.46
  6. Step 6: Final answer
    x = 50,138,663.69

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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.