Home / 712,124,502.31-1,068,089,785.93-187,449,664.78

Finding the Fourth Proportional to 712,124,502.31, 1,068,089,785.93 and 187,449,664.78

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Solution

The fourth proportional to 712,124,502.31, 1,068,089,785.93 and 187,449,664.78 is: 281,148,972.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,124,502.31 : 1,068,089,785.93 = 187,449,664.78 : x
  2. Step 2: Convert to fraction form
    712,124,502.31/1,068,089,785.93 = 187,449,664.78/x
  3. Step 3: Cross multiply
    712,124,502.31x = 1,068,089,785.93 × 187,449,664.78
  4. Step 4: Simplify right side
    712,124,502.31x = 200,213,072,327,520,448
  5. Step 5: Solve for x
    x = 200,213,072,327,520,448/712,124,502.31
  6. Step 6: Final answer
    x = 281,148,972.80

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Why These Related Problems?

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