Home / 209,975,532.98-289,719,860.54-121,818,475.44

Finding the Fourth Proportional to 209,975,532.98, 289,719,860.54 and 121,818,475.44

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Solution

The fourth proportional to 209,975,532.98, 289,719,860.54 and 121,818,475.44 is: 168,082,591.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,975,532.98 : 289,719,860.54 = 121,818,475.44 : x
  2. Step 2: Convert to fraction form
    209,975,532.98/289,719,860.54 = 121,818,475.44/x
  3. Step 3: Cross multiply
    209,975,532.98x = 289,719,860.54 × 121,818,475.44
  4. Step 4: Simplify right side
    209,975,532.98x = 35,293,231,715,063,124
  5. Step 5: Solve for x
    x = 35,293,231,715,063,124/209,975,532.98
  6. Step 6: Final answer
    x = 168,082,591.41

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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.