Home / 121,931,734.73-168,265,956.33-66,177,155.16

Finding the Fourth Proportional to 121,931,734.73, 168,265,956.33 and 66,177,155.16

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Solution

The fourth proportional to 121,931,734.73, 168,265,956.33 and 66,177,155.16 is: 91,324,562.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,931,734.73 : 168,265,956.33 = 66,177,155.16 : x
  2. Step 2: Convert to fraction form
    121,931,734.73/168,265,956.33 = 66,177,155.16/x
  3. Step 3: Cross multiply
    121,931,734.73x = 168,265,956.33 × 66,177,155.16
  4. Step 4: Simplify right side
    121,931,734.73x = 11,135,362,300,196,194
  5. Step 5: Solve for x
    x = 11,135,362,300,196,194/121,931,734.73
  6. Step 6: Final answer
    x = 91,324,562.27

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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.