Home / 128,110,181.51-192,084,522.75-108,686,209.79

Finding the Fourth Proportional to 128,110,181.51, 192,084,522.75 and 108,686,209.79

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Solution

The fourth proportional to 128,110,181.51, 192,084,522.75 and 108,686,209.79 is: 162,960,808.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,110,181.51 : 192,084,522.75 = 108,686,209.79 : x
  2. Step 2: Convert to fraction form
    128,110,181.51/192,084,522.75 = 108,686,209.79/x
  3. Step 3: Cross multiply
    128,110,181.51x = 192,084,522.75 × 108,686,209.79
  4. Step 4: Simplify right side
    128,110,181.51x = 20,876,938,737,018,528
  5. Step 5: Solve for x
    x = 20,876,938,737,018,528/128,110,181.51
  6. Step 6: Final answer
    x = 162,960,808.35

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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.