Home / 66,038,152.57-91,141,058.10-39,932,857.22

Finding the Fourth Proportional to 66,038,152.57, 91,141,058.10 and 39,932,857.22

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Solution

The fourth proportional to 66,038,152.57, 91,141,058.10 and 39,932,857.22 is: 55,112,426.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,038,152.57 : 91,141,058.10 = 39,932,857.22 : x
  2. Step 2: Convert to fraction form
    66,038,152.57/91,141,058.10 = 39,932,857.22/x
  3. Step 3: Cross multiply
    66,038,152.57x = 91,141,058.10 × 39,932,857.22
  4. Step 4: Simplify right side
    66,038,152.57x = 3,639,522,859,787,360
  5. Step 5: Solve for x
    x = 3,639,522,859,787,360/66,038,152.57
  6. Step 6: Final answer
    x = 55,112,426.96

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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.