Home / 105,651,853.50-145,737,787.50-66,431,536.86

Finding the Fourth Proportional to 105,651,853.50, 145,737,787.50 and 66,431,536.86

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Solution

The fourth proportional to 105,651,853.50, 145,737,787.50 and 66,431,536.86 is: 91,636,681.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,651,853.50 : 145,737,787.50 = 66,431,536.86 : x
  2. Step 2: Convert to fraction form
    105,651,853.50/145,737,787.50 = 66,431,536.86/x
  3. Step 3: Cross multiply
    105,651,853.50x = 145,737,787.50 × 66,431,536.86
  4. Step 4: Simplify right side
    105,651,853.50x = 9,681,585,202,201,098
  5. Step 5: Solve for x
    x = 9,681,585,202,201,098/105,651,853.50
  6. Step 6: Final answer
    x = 91,636,681.06

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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.