Home / 42,638,687.85-63,958,042.71-11,937,790.23

Finding the Fourth Proportional to 42,638,687.85, 63,958,042.71 and 11,937,790.23

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Solution

The fourth proportional to 42,638,687.85, 63,958,042.71 and 11,937,790.23 is: 17,906,688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,638,687.85 : 63,958,042.71 = 11,937,790.23 : x
  2. Step 2: Convert to fraction form
    42,638,687.85/63,958,042.71 = 11,937,790.23/x
  3. Step 3: Cross multiply
    42,638,687.85x = 63,958,042.71 × 11,937,790.23
  4. Step 4: Simplify right side
    42,638,687.85x = 763,517,697,073,570.50
  5. Step 5: Solve for x
    x = 763,517,697,073,570.50/42,638,687.85
  6. Step 6: Final answer
    x = 17,906,688.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.