Home / 998,908,692.20-1,498,363,038.30-981,690,003.80

Finding the Fourth Proportional to 998,908,692.20, 1,498,363,038.30 and 981,690,003.80

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Solution

The fourth proportional to 998,908,692.20, 1,498,363,038.30 and 981,690,003.80 is: 1,472,535,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,908,692.20 : 1,498,363,038.30 = 981,690,003.80 : x
  2. Step 2: Convert to fraction form
    998,908,692.20/1,498,363,038.30 = 981,690,003.80/x
  3. Step 3: Cross multiply
    998,908,692.20x = 1,498,363,038.30 × 981,690,003.80
  4. Step 4: Simplify right side
    998,908,692.20x = 1,470,928,016,762,506,496
  5. Step 5: Solve for x
    x = 1,470,928,016,762,506,496/998,908,692.20
  6. Step 6: Final answer
    x = 1,472,535,005.70

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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.