Home / 157,830,347.24-217,797,093.51-87,261,877.61

Finding the Fourth Proportional to 157,830,347.24, 217,797,093.51 and 87,261,877.61

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Solution

The fourth proportional to 157,830,347.24, 217,797,093.51 and 87,261,877.61 is: 120,416,533.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,830,347.24 : 217,797,093.51 = 87,261,877.61 : x
  2. Step 2: Convert to fraction form
    157,830,347.24/217,797,093.51 = 87,261,877.61/x
  3. Step 3: Cross multiply
    157,830,347.24x = 217,797,093.51 × 87,261,877.61
  4. Step 4: Simplify right side
    157,830,347.24x = 19,005,383,317,683,344
  5. Step 5: Solve for x
    x = 19,005,383,317,683,344/157,830,347.24
  6. Step 6: Final answer
    x = 120,416,533.64

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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.