Home / 109,169,421-150,530,979.06-89,261,072.52

Finding the Fourth Proportional to 109,169,421, 150,530,979.06 and 89,261,072.52

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Solution

The fourth proportional to 109,169,421, 150,530,979.06 and 89,261,072.52 is: 123,079,856.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,169,421 : 150,530,979.06 = 89,261,072.52 : x
  2. Step 2: Convert to fraction form
    109,169,421/150,530,979.06 = 89,261,072.52/x
  3. Step 3: Cross multiply
    109,169,421x = 150,530,979.06 × 89,261,072.52
  4. Step 4: Simplify right side
    109,169,421x = 13,436,556,638,381,262
  5. Step 5: Solve for x
    x = 13,436,556,638,381,262/109,169,421
  6. Step 6: Final answer
    x = 123,079,856.20

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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.