Home / 121,693,674.60-167,995,179.75-81,528,829.73

Finding the Fourth Proportional to 121,693,674.60, 167,995,179.75 and 81,528,829.73

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Solution

The fourth proportional to 121,693,674.60, 167,995,179.75 and 81,528,829.73 is: 112,548,581.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,693,674.60 : 167,995,179.75 = 81,528,829.73 : x
  2. Step 2: Convert to fraction form
    121,693,674.60/167,995,179.75 = 81,528,829.73/x
  3. Step 3: Cross multiply
    121,693,674.60x = 167,995,179.75 × 81,528,829.73
  4. Step 4: Simplify right side
    121,693,674.60x = 13,696,450,404,458,518
  5. Step 5: Solve for x
    x = 13,696,450,404,458,518/121,693,674.60
  6. Step 6: Final answer
    x = 112,548,581.09

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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.