Home / 1,278,434,251.80-1,919,086,268.40-988,586,330.40

Finding the Fourth Proportional to 1,278,434,251.80, 1,919,086,268.40 and 988,586,330.40

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Solution

The fourth proportional to 1,278,434,251.80, 1,919,086,268.40 and 988,586,330.40 is: 1,483,989,066.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,434,251.80 : 1,919,086,268.40 = 988,586,330.40 : x
  2. Step 2: Convert to fraction form
    1,278,434,251.80/1,919,086,268.40 = 988,586,330.40/x
  3. Step 3: Cross multiply
    1,278,434,251.80x = 1,919,086,268.40 × 988,586,330.40
  4. Step 4: Simplify right side
    1,278,434,251.80x = 1,897,182,451,798,585,600
  5. Step 5: Solve for x
    x = 1,897,182,451,798,585,600/1,278,434,251.80
  6. Step 6: Final answer
    x = 1,483,989,066.41

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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.