Home / 386,276,307.90-579,517,105.05-167,832,915.90

Finding the Fourth Proportional to 386,276,307.90, 579,517,105.05 and 167,832,915.90

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Solution

The fourth proportional to 386,276,307.90, 579,517,105.05 and 167,832,915.90 is: 251,793,971.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,276,307.90 : 579,517,105.05 = 167,832,915.90 : x
  2. Step 2: Convert to fraction form
    386,276,307.90/579,517,105.05 = 167,832,915.90/x
  3. Step 3: Cross multiply
    386,276,307.90x = 579,517,105.05 × 167,832,915.90
  4. Step 4: Simplify right side
    386,276,307.90x = 97,262,045,554,468,112
  5. Step 5: Solve for x
    x = 97,262,045,554,468,112/386,276,307.90
  6. Step 6: Final answer
    x = 251,793,971.22

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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.