Home / 65,778,692.84-90,753,727.76-38,271,306.68

Finding the Fourth Proportional to 65,778,692.84, 90,753,727.76 and 38,271,306.68

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Solution

The fourth proportional to 65,778,692.84, 90,753,727.76 and 38,271,306.68 is: 52,802,261.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,778,692.84 : 90,753,727.76 = 38,271,306.68 : x
  2. Step 2: Convert to fraction form
    65,778,692.84/90,753,727.76 = 38,271,306.68/x
  3. Step 3: Cross multiply
    65,778,692.84x = 90,753,727.76 × 38,271,306.68
  4. Step 4: Simplify right side
    65,778,692.84x = 3,473,263,747,456,189.50
  5. Step 5: Solve for x
    x = 3,473,263,747,456,189.50/65,778,692.84
  6. Step 6: Final answer
    x = 52,802,261.61

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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.