Home / 398,945,269.80-598,417,904.70-245,890,261.80

Finding the Fourth Proportional to 398,945,269.80, 598,417,904.70 and 245,890,261.80

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Solution

The fourth proportional to 398,945,269.80, 598,417,904.70 and 245,890,261.80 is: 368,835,392.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,945,269.80 : 598,417,904.70 = 245,890,261.80 : x
  2. Step 2: Convert to fraction form
    398,945,269.80/598,417,904.70 = 245,890,261.80/x
  3. Step 3: Cross multiply
    398,945,269.80x = 598,417,904.70 × 245,890,261.80
  4. Step 4: Simplify right side
    398,945,269.80x = 147,145,135,252,490,464
  5. Step 5: Solve for x
    x = 147,145,135,252,490,464/398,945,269.80
  6. Step 6: Final answer
    x = 368,835,392.70

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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.