Home / 121,923,030.46-168,253,869.87-66,168,436.15

Finding the Fourth Proportional to 121,923,030.46, 168,253,869.87 and 66,168,436.15

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Solution

The fourth proportional to 121,923,030.46, 168,253,869.87 and 66,168,436.15 is: 91,312,489.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,923,030.46 : 168,253,869.87 = 66,168,436.15 : x
  2. Step 2: Convert to fraction form
    121,923,030.46/168,253,869.87 = 66,168,436.15/x
  3. Step 3: Cross multiply
    121,923,030.46x = 168,253,869.87 × 66,168,436.15
  4. Step 4: Simplify right side
    121,923,030.46x = 11,133,095,445,483,504
  5. Step 5: Solve for x
    x = 11,133,095,445,483,504/121,923,030.46
  6. Step 6: Final answer
    x = 91,312,489.56

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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.