Home / 100,218,716.50-138,299,476.53-58,968,280.66

Finding the Fourth Proportional to 100,218,716.50, 138,299,476.53 and 58,968,280.66

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Solution

The fourth proportional to 100,218,716.50, 138,299,476.53 and 58,968,280.66 is: 81,374,843.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,218,716.50 : 138,299,476.53 = 58,968,280.66 : x
  2. Step 2: Convert to fraction form
    100,218,716.50/138,299,476.53 = 58,968,280.66/x
  3. Step 3: Cross multiply
    100,218,716.50x = 138,299,476.53 × 58,968,280.66
  4. Step 4: Simplify right side
    100,218,716.50x = 8,155,282,347,152,122
  5. Step 5: Solve for x
    x = 8,155,282,347,152,122/100,218,716.50
  6. Step 6: Final answer
    x = 81,374,843.26

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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.