Home / 65,870,822.88-90,871,927.64-39,756,993.12

Finding the Fourth Proportional to 65,870,822.88, 90,871,927.64 and 39,756,993.12

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Solution

The fourth proportional to 65,870,822.88, 90,871,927.64 and 39,756,993.12 is: 54,846,659.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,870,822.88 : 90,871,927.64 = 39,756,993.12 : x
  2. Step 2: Convert to fraction form
    65,870,822.88/90,871,927.64 = 39,756,993.12/x
  3. Step 3: Cross multiply
    65,870,822.88x = 90,871,927.64 × 39,756,993.12
  4. Step 4: Simplify right side
    65,870,822.88x = 3,612,794,602,424,780
  5. Step 5: Solve for x
    x = 3,612,794,602,424,780/65,870,822.88
  6. Step 6: Final answer
    x = 54,846,659.63

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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.