Home / 574,039,846.20-792,419,855.16-385,977,146.40

Finding the Fourth Proportional to 574,039,846.20, 792,419,855.16 and 385,977,146.40

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Solution

The fourth proportional to 574,039,846.20, 792,419,855.16 and 385,977,146.40 is: 532,813,107.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,039,846.20 : 792,419,855.16 = 385,977,146.40 : x
  2. Step 2: Convert to fraction form
    574,039,846.20/792,419,855.16 = 385,977,146.40/x
  3. Step 3: Cross multiply
    574,039,846.20x = 792,419,855.16 × 385,977,146.40
  4. Step 4: Simplify right side
    574,039,846.20x = 305,855,954,445,358,080
  5. Step 5: Solve for x
    x = 305,855,954,445,358,080/574,039,846.20
  6. Step 6: Final answer
    x = 532,813,107.78

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1.5x scale

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.