Home / 998,765,727.40-1,498,409,864.70-385,369,964.20

Finding the Fourth Proportional to 998,765,727.40, 1,498,409,864.70 and 385,369,964.20

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Solution

The fourth proportional to 998,765,727.40, 1,498,409,864.70 and 385,369,964.20 is: 578,155,757.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,765,727.40 : 1,498,409,864.70 = 385,369,964.20 : x
  2. Step 2: Convert to fraction form
    998,765,727.40/1,498,409,864.70 = 385,369,964.20/x
  3. Step 3: Cross multiply
    998,765,727.40x = 1,498,409,864.70 × 385,369,964.20
  4. Step 4: Simplify right side
    998,765,727.40x = 577,442,155,916,365,824
  5. Step 5: Solve for x
    x = 577,442,155,916,365,824/998,765,727.40
  6. Step 6: Final answer
    x = 578,155,757.73

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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.