Home / 200,187,072.20-300,392,582.70-85,152,038.60

Finding the Fourth Proportional to 200,187,072.20, 300,392,582.70 and 85,152,038.60

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Solution

The fourth proportional to 200,187,072.20, 300,392,582.70 and 85,152,038.60 is: 127,775,687.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,187,072.20 : 300,392,582.70 = 85,152,038.60 : x
  2. Step 2: Convert to fraction form
    200,187,072.20/300,392,582.70 = 85,152,038.60/x
  3. Step 3: Cross multiply
    200,187,072.20x = 300,392,582.70 × 85,152,038.60
  4. Step 4: Simplify right side
    200,187,072.20x = 25,579,040,797,224,088
  5. Step 5: Solve for x
    x = 25,579,040,797,224,088/200,187,072.20
  6. Step 6: Final answer
    x = 127,775,687.59

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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.