Home / 289,940,969.60-400,118,604-159,560,777.60

Finding the Fourth Proportional to 289,940,969.60, 400,118,604 and 159,560,777.60

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Solution

The fourth proportional to 289,940,969.60, 400,118,604 and 159,560,777.60 is: 220,193,909.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,940,969.60 : 400,118,604 = 159,560,777.60 : x
  2. Step 2: Convert to fraction form
    289,940,969.60/400,118,604 = 159,560,777.60/x
  3. Step 3: Cross multiply
    289,940,969.60x = 400,118,604 × 159,560,777.60
  4. Step 4: Simplify right side
    289,940,969.60x = 63,843,235,586,466,472
  5. Step 5: Solve for x
    x = 63,843,235,586,466,472/289,940,969.60
  6. Step 6: Final answer
    x = 220,193,909.38

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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.