Home / 149,376,787.07-206,154,661.48-90,634,841.87

Finding the Fourth Proportional to 149,376,787.07, 206,154,661.48 and 90,634,841.87

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Solution

The fourth proportional to 149,376,787.07, 206,154,661.48 and 90,634,841.87 is: 125,084,998.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,376,787.07 : 206,154,661.48 = 90,634,841.87 : x
  2. Step 2: Convert to fraction form
    149,376,787.07/206,154,661.48 = 90,634,841.87/x
  3. Step 3: Cross multiply
    149,376,787.07x = 206,154,661.48 × 90,634,841.87
  4. Step 4: Simplify right side
    149,376,787.07x = 18,684,795,142,745,816
  5. Step 5: Solve for x
    x = 18,684,795,142,745,816/149,376,787.07
  6. Step 6: Final answer
    x = 125,084,998.21

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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.