Home / 149,376,788.07-206,154,662.86-90,634,842.87

Finding the Fourth Proportional to 149,376,788.07, 206,154,662.86 and 90,634,842.87

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Solution

The fourth proportional to 149,376,788.07, 206,154,662.86 and 90,634,842.87 is: 125,084,999.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,376,788.07 : 206,154,662.86 = 90,634,842.87 : x
  2. Step 2: Convert to fraction form
    149,376,788.07/206,154,662.86 = 90,634,842.87/x
  3. Step 3: Cross multiply
    149,376,788.07x = 206,154,662.86 × 90,634,842.87
  4. Step 4: Simplify right side
    149,376,788.07x = 18,684,795,475,233,928
  5. Step 5: Solve for x
    x = 18,684,795,475,233,928/149,376,788.07
  6. Step 6: Final answer
    x = 125,084,999.59

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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.