Home / 398,901,013.14-597,875,475.40-185,658,446.78

Finding the Fourth Proportional to 398,901,013.14, 597,875,475.40 and 185,658,446.78

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Solution

The fourth proportional to 398,901,013.14, 597,875,475.40 and 185,658,446.78 is: 278,266,107.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,901,013.14 : 597,875,475.40 = 185,658,446.78 : x
  2. Step 2: Convert to fraction form
    398,901,013.14/597,875,475.40 = 185,658,446.78/x
  3. Step 3: Cross multiply
    398,901,013.14x = 597,875,475.40 × 185,658,446.78
  4. Step 4: Simplify right side
    398,901,013.14x = 111,000,632,130,618,096
  5. Step 5: Solve for x
    x = 111,000,632,130,618,096/398,901,013.14
  6. Step 6: Final answer
    x = 278,266,107.32

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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.