Home / 291,085,408.70-436,628,113.05-267,276,851.90

Finding the Fourth Proportional to 291,085,408.70, 436,628,113.05 and 267,276,851.90

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Solution

The fourth proportional to 291,085,408.70, 436,628,113.05 and 267,276,851.90 is: 400,915,277.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,085,408.70 : 436,628,113.05 = 267,276,851.90 : x
  2. Step 2: Convert to fraction form
    291,085,408.70/436,628,113.05 = 267,276,851.90/x
  3. Step 3: Cross multiply
    291,085,408.70x = 436,628,113.05 × 267,276,851.90
  4. Step 4: Simplify right side
    291,085,408.70x = 116,700,587,507,041,312
  5. Step 5: Solve for x
    x = 116,700,587,507,041,312/291,085,408.70
  6. Step 6: Final answer
    x = 400,915,277.85

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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.