Home / 69,871,800-96,423,466.32-40,520,534.88

Finding the Fourth Proportional to 69,871,800, 96,423,466.32 and 40,520,534.88

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Solution

The fourth proportional to 69,871,800, 96,423,466.32 and 40,520,534.88 is: 55,918,559.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,871,800 : 96,423,466.32 = 40,520,534.88 : x
  2. Step 2: Convert to fraction form
    69,871,800/96,423,466.32 = 40,520,534.88/x
  3. Step 3: Cross multiply
    69,871,800x = 96,423,466.32 × 40,520,534.88
  4. Step 4: Simplify right side
    69,871,800x = 3,907,130,430,270,065
  5. Step 5: Solve for x
    x = 3,907,130,430,270,065/69,871,800
  6. Step 6: Final answer
    x = 55,918,559.85

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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.