Home / 138,366,694.10-190,948,307.63-82,616,985.69

Finding the Fourth Proportional to 138,366,694.10, 190,948,307.63 and 82,616,985.69

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Solution

The fourth proportional to 138,366,694.10, 190,948,307.63 and 82,616,985.69 is: 114,012,795.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,366,694.10 : 190,948,307.63 = 82,616,985.69 : x
  2. Step 2: Convert to fraction form
    138,366,694.10/190,948,307.63 = 82,616,985.69/x
  3. Step 3: Cross multiply
    138,366,694.10x = 190,948,307.63 × 82,616,985.69
  4. Step 4: Simplify right side
    138,366,694.10x = 15,775,573,598,584,342
  5. Step 5: Solve for x
    x = 15,775,573,598,584,342/138,366,694.10
  6. Step 6: Final answer
    x = 114,012,795.51

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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.