Home / 998,784,003.40-1,498,176,005.10-919,954,025.80

Finding the Fourth Proportional to 998,784,003.40, 1,498,176,005.10 and 919,954,025.80

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Solution

The fourth proportional to 998,784,003.40, 1,498,176,005.10 and 919,954,025.80 is: 1,379,931,038.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,784,003.40 : 1,498,176,005.10 = 919,954,025.80 : x
  2. Step 2: Convert to fraction form
    998,784,003.40/1,498,176,005.10 = 919,954,025.80/x
  3. Step 3: Cross multiply
    998,784,003.40x = 1,498,176,005.10 × 919,954,025.80
  4. Step 4: Simplify right side
    998,784,003.40x = 1,378,253,047,248,706,048
  5. Step 5: Solve for x
    x = 1,378,253,047,248,706,048/998,784,003.40
  6. Step 6: Final answer
    x = 1,379,931,038.70

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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.