Home / 1,388,111,894.79-2,082,094,509.39-455,311,870.91

Finding the Fourth Proportional to 1,388,111,894.79, 2,082,094,509.39 and 455,311,870.91

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Solution

The fourth proportional to 1,388,111,894.79, 2,082,094,509.39 and 455,311,870.91 is: 682,943,752.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,111,894.79 : 2,082,094,509.39 = 455,311,870.91 : x
  2. Step 2: Convert to fraction form
    1,388,111,894.79/2,082,094,509.39 = 455,311,870.91/x
  3. Step 3: Cross multiply
    1,388,111,894.79x = 2,082,094,509.39 × 455,311,870.91
  4. Step 4: Simplify right side
    1,388,111,894.79x = 948,002,346,477,512,192
  5. Step 5: Solve for x
    x = 948,002,346,477,512,192/1,388,111,894.79
  6. Step 6: Final answer
    x = 682,943,752.62

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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.