Home / 420,944,661.69-580,907,391.95-232,785,687.50

Finding the Fourth Proportional to 420,944,661.69, 580,907,391.95 and 232,785,687.50

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Solution

The fourth proportional to 420,944,661.69, 580,907,391.95 and 232,785,687.50 is: 321,246,327.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,944,661.69 : 580,907,391.95 = 232,785,687.50 : x
  2. Step 2: Convert to fraction form
    420,944,661.69/580,907,391.95 = 232,785,687.50/x
  3. Step 3: Cross multiply
    420,944,661.69x = 580,907,391.95 × 232,785,687.50
  4. Step 4: Simplify right side
    420,944,661.69x = 135,226,926,604,844,272
  5. Step 5: Solve for x
    x = 135,226,926,604,844,272/420,944,661.69
  6. Step 6: Final answer
    x = 321,246,327.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.