Home / 138,300,965.80-207,451,448.70-130,364,780.20

Finding the Fourth Proportional to 138,300,965.80, 207,451,448.70 and 130,364,780.20

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Solution

The fourth proportional to 138,300,965.80, 207,451,448.70 and 130,364,780.20 is: 195,547,170.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,300,965.80 : 207,451,448.70 = 130,364,780.20 : x
  2. Step 2: Convert to fraction form
    138,300,965.80/207,451,448.70 = 130,364,780.20/x
  3. Step 3: Cross multiply
    138,300,965.80x = 207,451,448.70 × 130,364,780.20
  4. Step 4: Simplify right side
    138,300,965.80x = 27,044,362,511,947,076
  5. Step 5: Solve for x
    x = 27,044,362,511,947,076/138,300,965.80
  6. Step 6: Final answer
    x = 195,547,170.30

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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.