Home / 87,239,888.07-120,389,481.54-47,547,774.78

Finding the Fourth Proportional to 87,239,888.07, 120,389,481.54 and 47,547,774.78

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Solution

The fourth proportional to 87,239,888.07, 120,389,481.54 and 47,547,774.78 is: 65,615,076.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,239,888.07 : 120,389,481.54 = 47,547,774.78 : x
  2. Step 2: Convert to fraction form
    87,239,888.07/120,389,481.54 = 47,547,774.78/x
  3. Step 3: Cross multiply
    87,239,888.07x = 120,389,481.54 × 47,547,774.78
  4. Step 4: Simplify right side
    87,239,888.07x = 5,724,251,954,144,888
  5. Step 5: Solve for x
    x = 5,724,251,954,144,888/87,239,888.07
  6. Step 6: Final answer
    x = 65,615,076.78

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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.