Home / 66,770,689.11-92,148,662.78-42,012,098.49

Finding the Fourth Proportional to 66,770,689.11, 92,148,662.78 and 42,012,098.49

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Solution

The fourth proportional to 66,770,689.11, 92,148,662.78 and 42,012,098.49 is: 57,979,912.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,770,689.11 : 92,148,662.78 = 42,012,098.49 : x
  2. Step 2: Convert to fraction form
    66,770,689.11/92,148,662.78 = 42,012,098.49/x
  3. Step 3: Cross multiply
    66,770,689.11x = 92,148,662.78 × 42,012,098.49
  4. Step 4: Simplify right side
    66,770,689.11x = 3,871,358,696,435,157.50
  5. Step 5: Solve for x
    x = 3,871,358,696,435,157.50/66,770,689.11
  6. Step 6: Final answer
    x = 57,979,912.26

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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.