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Finding the Fourth Proportional to 66,578,854.03, 91,874,860.03 and 36,807,719.92

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Solution

The fourth proportional to 66,578,854.03, 91,874,860.03 and 36,807,719.92 is: 50,792,465.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,578,854.03 : 91,874,860.03 = 36,807,719.92 : x
  2. Step 2: Convert to fraction form
    66,578,854.03/91,874,860.03 = 36,807,719.92/x
  3. Step 3: Cross multiply
    66,578,854.03x = 91,874,860.03 × 36,807,719.92
  4. Step 4: Simplify right side
    66,578,854.03x = 3,381,704,115,673,443
  5. Step 5: Solve for x
    x = 3,381,704,115,673,443/66,578,854.03
  6. Step 6: Final answer
    x = 50,792,465.04

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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.