Home / 209,422,852.76-289,000,010.58-115,345,760.42

Finding the Fourth Proportional to 209,422,852.76, 289,000,010.58 and 115,345,760.42

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Solution

The fourth proportional to 209,422,852.76, 289,000,010.58 and 115,345,760.42 is: 159,175,207.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,422,852.76 : 289,000,010.58 = 115,345,760.42 : x
  2. Step 2: Convert to fraction form
    209,422,852.76/289,000,010.58 = 115,345,760.42/x
  3. Step 3: Cross multiply
    209,422,852.76x = 289,000,010.58 × 115,345,760.42
  4. Step 4: Simplify right side
    209,422,852.76x = 33,334,925,980,293,144
  5. Step 5: Solve for x
    x = 33,334,925,980,293,144/209,422,852.76
  6. Step 6: Final answer
    x = 159,175,207.20

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1.5x scale

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.