Home / 998,619,320.80-1,497,928,981.20-611,635,794.40

Finding the Fourth Proportional to 998,619,320.80, 1,497,928,981.20 and 611,635,794.40

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Solution

The fourth proportional to 998,619,320.80, 1,497,928,981.20 and 611,635,794.40 is: 917,453,691.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,619,320.80 : 1,497,928,981.20 = 611,635,794.40 : x
  2. Step 2: Convert to fraction form
    998,619,320.80/1,497,928,981.20 = 611,635,794.40/x
  3. Step 3: Cross multiply
    998,619,320.80x = 1,497,928,981.20 × 611,635,794.40
  4. Step 4: Simplify right side
    998,619,320.80x = 916,186,982,371,044,608
  5. Step 5: Solve for x
    x = 916,186,982,371,044,608/998,619,320.80
  6. Step 6: Final answer
    x = 917,453,691.60

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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.