Home / 202,672,897.40-279,689,010.55-109,853,468.12

Finding the Fourth Proportional to 202,672,897.40, 279,689,010.55 and 109,853,468.12

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Solution

The fourth proportional to 202,672,897.40, 279,689,010.55 and 109,853,468.12 is: 151,598,009.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,672,897.40 : 279,689,010.55 = 109,853,468.12 : x
  2. Step 2: Convert to fraction form
    202,672,897.40/279,689,010.55 = 109,853,468.12/x
  3. Step 3: Cross multiply
    202,672,897.40x = 279,689,010.55 × 109,853,468.12
  4. Step 4: Simplify right side
    202,672,897.40x = 30,724,807,804,393,360
  5. Step 5: Solve for x
    x = 30,724,807,804,393,360/202,672,897.40
  6. Step 6: Final answer
    x = 151,598,009.39

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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.