Home / 121,396,172.54-167,526,599.65-65,641,459.76

Finding the Fourth Proportional to 121,396,172.54, 167,526,599.65 and 65,641,459.76

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Solution

The fourth proportional to 121,396,172.54, 167,526,599.65 and 65,641,459.76 is: 90,585,150.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,396,172.54 : 167,526,599.65 = 65,641,459.76 : x
  2. Step 2: Convert to fraction form
    121,396,172.54/167,526,599.65 = 65,641,459.76/x
  3. Step 3: Cross multiply
    121,396,172.54x = 167,526,599.65 × 65,641,459.76
  4. Step 4: Simplify right side
    121,396,172.54x = 10,996,690,548,653,370
  5. Step 5: Solve for x
    x = 10,996,690,548,653,370/121,396,172.54
  6. Step 6: Final answer
    x = 90,585,150.41

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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.