Home / 209,744,422.96-289,464,536.64-115,676,968.36

Finding the Fourth Proportional to 209,744,422.96, 289,464,536.64 and 115,676,968.36

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Solution

The fourth proportional to 209,744,422.96, 289,464,536.64 and 115,676,968.36 is: 159,643,720.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,744,422.96 : 289,464,536.64 = 115,676,968.36 : x
  2. Step 2: Convert to fraction form
    209,744,422.96/289,464,536.64 = 115,676,968.36/x
  3. Step 3: Cross multiply
    209,744,422.96x = 289,464,536.64 × 115,676,968.36
  4. Step 4: Simplify right side
    209,744,422.96x = 33,484,380,046,247,340
  5. Step 5: Solve for x
    x = 33,484,380,046,247,340/209,744,422.96
  6. Step 6: Final answer
    x = 159,643,720.55

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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.