Home / 312,464,909.16-468,716,850-82,434,215.22

Finding the Fourth Proportional to 312,464,909.16, 468,716,850 and 82,434,215.22

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Solution

The fourth proportional to 312,464,909.16, 468,716,850 and 82,434,215.22 is: 123,656,463.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,464,909.16 : 468,716,850 = 82,434,215.22 : x
  2. Step 2: Convert to fraction form
    312,464,909.16/468,716,850 = 82,434,215.22/x
  3. Step 3: Cross multiply
    312,464,909.16x = 468,716,850 × 82,434,215.22
  4. Step 4: Simplify right side
    312,464,909.16x = 38,638,305,690,140,456
  5. Step 5: Solve for x
    x = 38,638,305,690,140,456/312,464,909.16
  6. Step 6: Final answer
    x = 123,656,463.68

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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.