Home / 210,015,387.30-314,928,602.55-80,579,979.30

Finding the Fourth Proportional to 210,015,387.30, 314,928,602.55 and 80,579,979.30

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Solution

The fourth proportional to 210,015,387.30, 314,928,602.55 and 80,579,979.30 is: 120,833,718.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,015,387.30 : 314,928,602.55 = 80,579,979.30 : x
  2. Step 2: Convert to fraction form
    210,015,387.30/314,928,602.55 = 80,579,979.30/x
  3. Step 3: Cross multiply
    210,015,387.30x = 314,928,602.55 × 80,579,979.30
  4. Step 4: Simplify right side
    210,015,387.30x = 25,376,940,274,456,928
  5. Step 5: Solve for x
    x = 25,376,940,274,456,928/210,015,387.30
  6. Step 6: Final answer
    x = 120,833,718.90

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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.