Home / 879,024,037.01-1,213,008,623.51-521,807,082.80

Finding the Fourth Proportional to 879,024,037.01, 1,213,008,623.51 and 521,807,082.80

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Solution

The fourth proportional to 879,024,037.01, 1,213,008,623.51 and 521,807,082.80 is: 720,067,329.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,024,037.01 : 1,213,008,623.51 = 521,807,082.80 : x
  2. Step 2: Convert to fraction form
    879,024,037.01/1,213,008,623.51 = 521,807,082.80/x
  3. Step 3: Cross multiply
    879,024,037.01x = 1,213,008,623.51 × 521,807,082.80
  4. Step 4: Simplify right side
    879,024,037.01x = 632,956,491,247,522,816
  5. Step 5: Solve for x
    x = 632,956,491,247,522,816/879,024,037.01
  6. Step 6: Final answer
    x = 720,067,329.90

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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.