Home / 131,310,641.88-181,231,187.40-76,338,384.84

Finding the Fourth Proportional to 131,310,641.88, 181,231,187.40 and 76,338,384.84

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Solution

The fourth proportional to 131,310,641.88, 181,231,187.40 and 76,338,384.84 is: 105,360,052.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,310,641.88 : 181,231,187.40 = 76,338,384.84 : x
  2. Step 2: Convert to fraction form
    131,310,641.88/181,231,187.40 = 76,338,384.84/x
  3. Step 3: Cross multiply
    131,310,641.88x = 181,231,187.40 × 76,338,384.84
  4. Step 4: Simplify right side
    131,310,641.88x = 13,834,896,128,751,360
  5. Step 5: Solve for x
    x = 13,834,896,128,751,360/131,310,641.88
  6. Step 6: Final answer
    x = 105,360,052.55

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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.