Home / 712,124,501.31-1,068,089,784.44-187,449,663.78

Finding the Fourth Proportional to 712,124,501.31, 1,068,089,784.44 and 187,449,663.78

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Solution

The fourth proportional to 712,124,501.31, 1,068,089,784.44 and 187,449,663.78 is: 281,148,971.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,124,501.31 : 1,068,089,784.44 = 187,449,663.78 : x
  2. Step 2: Convert to fraction form
    712,124,501.31/1,068,089,784.44 = 187,449,663.78/x
  3. Step 3: Cross multiply
    712,124,501.31x = 1,068,089,784.44 × 187,449,663.78
  4. Step 4: Simplify right side
    712,124,501.31x = 200,213,070,979,193,408
  5. Step 5: Solve for x
    x = 200,213,070,979,193,408/712,124,501.31
  6. Step 6: Final answer
    x = 281,148,971.30

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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.