Home / 315,680,329.80-472,848,648.30-261,932,617.80

Finding the Fourth Proportional to 315,680,329.80, 472,848,648.30 and 261,932,617.80

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Solution

The fourth proportional to 315,680,329.80, 472,848,648.30 and 261,932,617.80 is: 392,341,468.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,680,329.80 : 472,848,648.30 = 261,932,617.80 : x
  2. Step 2: Convert to fraction form
    315,680,329.80/472,848,648.30 = 261,932,617.80/x
  3. Step 3: Cross multiply
    315,680,329.80x = 472,848,648.30 × 261,932,617.80
  4. Step 4: Simplify right side
    315,680,329.80x = 123,854,484,272,410,528
  5. Step 5: Solve for x
    x = 123,854,484,272,410,528/315,680,329.80
  6. Step 6: Final answer
    x = 392,341,468.82

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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.