Home / 65,870,821.76-90,871,926.09-39,756,992.00

Finding the Fourth Proportional to 65,870,821.76, 90,871,926.09 and 39,756,992.00

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Solution

The fourth proportional to 65,870,821.76, 90,871,926.09 and 39,756,992.00 is: 54,846,658.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,870,821.76 : 90,871,926.09 = 39,756,992.00 : x
  2. Step 2: Convert to fraction form
    65,870,821.76/90,871,926.09 = 39,756,992.00/x
  3. Step 3: Cross multiply
    65,870,821.76x = 90,871,926.09 × 39,756,992.00
  4. Step 4: Simplify right side
    65,870,821.76x = 3,612,794,438,471,131.50
  5. Step 5: Solve for x
    x = 3,612,794,438,471,131.50/65,870,821.76
  6. Step 6: Final answer
    x = 54,846,658.08

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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.