Home / 157,198,795.15-235,495,980.60-87,901,420.89

Finding the Fourth Proportional to 157,198,795.15, 235,495,980.60 and 87,901,420.89

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Solution

The fourth proportional to 157,198,795.15, 235,495,980.60 and 87,901,420.89 is: 131,683,142.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,198,795.15 : 235,495,980.60 = 87,901,420.89 : x
  2. Step 2: Convert to fraction form
    157,198,795.15/235,495,980.60 = 87,901,420.89/x
  3. Step 3: Cross multiply
    157,198,795.15x = 235,495,980.60 × 87,901,420.89
  4. Step 4: Simplify right side
    157,198,795.15x = 20,700,431,308,305,036
  5. Step 5: Solve for x
    x = 20,700,431,308,305,036/157,198,795.15
  6. Step 6: Final answer
    x = 131,683,142.28

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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.