Home / 1,379,863,273.20-2,069,794,909.80-828,865,244.40

Finding the Fourth Proportional to 1,379,863,273.20, 2,069,794,909.80 and 828,865,244.40

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Solution

The fourth proportional to 1,379,863,273.20, 2,069,794,909.80 and 828,865,244.40 is: 1,243,297,866.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,863,273.20 : 2,069,794,909.80 = 828,865,244.40 : x
  2. Step 2: Convert to fraction form
    1,379,863,273.20/2,069,794,909.80 = 828,865,244.40/x
  3. Step 3: Cross multiply
    1,379,863,273.20x = 2,069,794,909.80 × 828,865,244.40
  4. Step 4: Simplify right side
    1,379,863,273.20x = 1,715,581,063,769,252,864
  5. Step 5: Solve for x
    x = 1,715,581,063,769,252,864/1,379,863,273.20
  6. Step 6: Final answer
    x = 1,243,297,866.60

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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.