Home / 151,612,135.28-209,224,741.32-81,997,514.48

Finding the Fourth Proportional to 151,612,135.28, 209,224,741.32 and 81,997,514.48

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Solution

The fourth proportional to 151,612,135.28, 209,224,741.32 and 81,997,514.48 is: 113,156,567.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,612,135.28 : 209,224,741.32 = 81,997,514.48 : x
  2. Step 2: Convert to fraction form
    151,612,135.28/209,224,741.32 = 81,997,514.48/x
  3. Step 3: Cross multiply
    151,612,135.28x = 209,224,741.32 × 81,997,514.48
  4. Step 4: Simplify right side
    151,612,135.28x = 17,155,908,755,960,954
  5. Step 5: Solve for x
    x = 17,155,908,755,960,954/151,612,135.28
  6. Step 6: Final answer
    x = 113,156,567.08

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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.