Home / 289,039,580.40-398,873,610.60-156,880,569.66

Finding the Fourth Proportional to 289,039,580.40, 398,873,610.60 and 156,880,569.66

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Solution

The fourth proportional to 289,039,580.40, 398,873,610.60 and 156,880,569.66 is: 216,494,637.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,039,580.40 : 398,873,610.60 = 156,880,569.66 : x
  2. Step 2: Convert to fraction form
    289,039,580.40/398,873,610.60 = 156,880,569.66/x
  3. Step 3: Cross multiply
    289,039,580.40x = 398,873,610.60 × 156,880,569.66
  4. Step 4: Simplify right side
    289,039,580.40x = 62,575,519,253,269,016
  5. Step 5: Solve for x
    x = 62,575,519,253,269,016/289,039,580.40
  6. Step 6: Final answer
    x = 216,494,637.75

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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.