Home / 1,349,665,621.68-1,861,789,019.85-785,086,906.08

Finding the Fourth Proportional to 1,349,665,621.68, 1,861,789,019.85 and 785,086,906.08

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Solution

The fourth proportional to 1,349,665,621.68, 1,861,789,019.85 and 785,086,906.08 is: 1,082,983,931.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349,665,621.68 : 1,861,789,019.85 = 785,086,906.08 : x
  2. Step 2: Convert to fraction form
    1,349,665,621.68/1,861,789,019.85 = 785,086,906.08/x
  3. Step 3: Cross multiply
    1,349,665,621.68x = 1,861,789,019.85 × 785,086,906.08
  4. Step 4: Simplify right side
    1,349,665,621.68x = 1,461,666,181,367,752,192
  5. Step 5: Solve for x
    x = 1,461,666,181,367,752,192/1,349,665,621.68
  6. Step 6: Final answer
    x = 1,082,983,931.64

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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.