Home / 66,038,152.86-91,141,058.46-39,932,857.50

Finding the Fourth Proportional to 66,038,152.86, 91,141,058.46 and 39,932,857.50

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Solution

The fourth proportional to 66,038,152.86, 91,141,058.46 and 39,932,857.50 is: 55,112,427.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,038,152.86 : 91,141,058.46 = 39,932,857.50 : x
  2. Step 2: Convert to fraction form
    66,038,152.86/91,141,058.46 = 39,932,857.50/x
  3. Step 3: Cross multiply
    66,038,152.86x = 91,141,058.46 × 39,932,857.50
  4. Step 4: Simplify right side
    66,038,152.86x = 3,639,522,899,882,349
  5. Step 5: Solve for x
    x = 3,639,522,899,882,349/66,038,152.86
  6. Step 6: Final answer
    x = 55,112,427.32

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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.