Home / 291,085,487.20-436,628,230.80-267,276,930.40

Finding the Fourth Proportional to 291,085,487.20, 436,628,230.80 and 267,276,930.40

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Solution

The fourth proportional to 291,085,487.20, 436,628,230.80 and 267,276,930.40 is: 400,915,395.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,085,487.20 : 436,628,230.80 = 267,276,930.40 : x
  2. Step 2: Convert to fraction form
    291,085,487.20/436,628,230.80 = 267,276,930.40/x
  3. Step 3: Cross multiply
    291,085,487.20x = 436,628,230.80 × 267,276,930.40
  4. Step 4: Simplify right side
    291,085,487.20x = 116,700,653,254,206,736
  5. Step 5: Solve for x
    x = 116,700,653,254,206,736/291,085,487.20
  6. Step 6: Final answer
    x = 400,915,395.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.