Home / 291,085,511.20-436,628,266.80-267,276,954.40

Finding the Fourth Proportional to 291,085,511.20, 436,628,266.80 and 267,276,954.40

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Solution

The fourth proportional to 291,085,511.20, 436,628,266.80 and 267,276,954.40 is: 400,915,431.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,085,511.20 : 436,628,266.80 = 267,276,954.40 : x
  2. Step 2: Convert to fraction form
    291,085,511.20/436,628,266.80 = 267,276,954.40/x
  3. Step 3: Cross multiply
    291,085,511.20x = 436,628,266.80 × 267,276,954.40
  4. Step 4: Simplify right side
    291,085,511.20x = 116,700,673,355,254,640
  5. Step 5: Solve for x
    x = 116,700,673,355,254,640/291,085,511.20
  6. Step 6: Final answer
    x = 400,915,431.60

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1.5x scale

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.