Home / 138,063,517.18-190,531,696.43-75,343,656.58

Finding the Fourth Proportional to 138,063,517.18, 190,531,696.43 and 75,343,656.58

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Solution

The fourth proportional to 138,063,517.18, 190,531,696.43 and 75,343,656.58 is: 103,976,452.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,063,517.18 : 190,531,696.43 = 75,343,656.58 : x
  2. Step 2: Convert to fraction form
    138,063,517.18/190,531,696.43 = 75,343,656.58/x
  3. Step 3: Cross multiply
    138,063,517.18x = 190,531,696.43 × 75,343,656.58
  4. Step 4: Simplify right side
    138,063,517.18x = 14,355,354,703,426,732
  5. Step 5: Solve for x
    x = 14,355,354,703,426,732/138,063,517.18
  6. Step 6: Final answer
    x = 103,976,452.26

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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.