Home / 71,338,819.70-98,449,994.52-68,069,959.40

Finding the Fourth Proportional to 71,338,819.70, 98,449,994.52 and 68,069,959.40

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Solution

The fourth proportional to 71,338,819.70, 98,449,994.52 and 68,069,959.40 is: 93,938,856.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,338,819.70 : 98,449,994.52 = 68,069,959.40 : x
  2. Step 2: Convert to fraction form
    71,338,819.70/98,449,994.52 = 68,069,959.40/x
  3. Step 3: Cross multiply
    71,338,819.70x = 98,449,994.52 × 68,069,959.40
  4. Step 4: Simplify right side
    71,338,819.70x = 6,701,487,129,906,623
  5. Step 5: Solve for x
    x = 6,701,487,129,906,623/71,338,819.70
  6. Step 6: Final answer
    x = 93,938,856.26

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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.