Home / 65,699,069.28-90,665,302.50-36,332,378.40

Finding the Fourth Proportional to 65,699,069.28, 90,665,302.50 and 36,332,378.40

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Solution

The fourth proportional to 65,699,069.28, 90,665,302.50 and 36,332,378.40 is: 50,139,006.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,699,069.28 : 90,665,302.50 = 36,332,378.40 : x
  2. Step 2: Convert to fraction form
    65,699,069.28/90,665,302.50 = 36,332,378.40/x
  3. Step 3: Cross multiply
    65,699,069.28x = 90,665,302.50 × 36,332,378.40
  4. Step 4: Simplify right side
    65,699,069.28x = 3,294,086,078,180,466
  5. Step 5: Solve for x
    x = 3,294,086,078,180,466/65,699,069.28
  6. Step 6: Final answer
    x = 50,139,006.75

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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.