Home / 200,187,062.70-300,392,568.45-85,152,029.10

Finding the Fourth Proportional to 200,187,062.70, 300,392,568.45 and 85,152,029.10

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Solution

The fourth proportional to 200,187,062.70, 300,392,568.45 and 85,152,029.10 is: 127,775,673.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,187,062.70 : 300,392,568.45 = 85,152,029.10 : x
  2. Step 2: Convert to fraction form
    200,187,062.70/300,392,568.45 = 85,152,029.10/x
  3. Step 3: Cross multiply
    200,187,062.70x = 300,392,568.45 × 85,152,029.10
  4. Step 4: Simplify right side
    200,187,062.70x = 25,579,036,730,078,140
  5. Step 5: Solve for x
    x = 25,579,036,730,078,140/200,187,062.70
  6. Step 6: Final answer
    x = 127,775,673.34

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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.