Home / 209,932,480.31-314,897,599.16-54,486,174.79

Finding the Fourth Proportional to 209,932,480.31, 314,897,599.16 and 54,486,174.79

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Solution

The fourth proportional to 209,932,480.31, 314,897,599.16 and 54,486,174.79 is: 81,728,971.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,932,480.31 : 314,897,599.16 = 54,486,174.79 : x
  2. Step 2: Convert to fraction form
    209,932,480.31/314,897,599.16 = 54,486,174.79/x
  3. Step 3: Cross multiply
    209,932,480.31x = 314,897,599.16 × 54,486,174.79
  4. Step 4: Simplify right side
    209,932,480.31x = 17,157,565,626,936,196
  5. Step 5: Solve for x
    x = 17,157,565,626,936,196/209,932,480.31
  6. Step 6: Final answer
    x = 81,728,971.15

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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.