Home / 1,118,648,086.20-1,677,972,129.30-711,509,167.80

Finding the Fourth Proportional to 1,118,648,086.20, 1,677,972,129.30 and 711,509,167.80

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Solution

The fourth proportional to 1,118,648,086.20, 1,677,972,129.30 and 711,509,167.80 is: 1,067,263,751.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,648,086.20 : 1,677,972,129.30 = 711,509,167.80 : x
  2. Step 2: Convert to fraction form
    1,118,648,086.20/1,677,972,129.30 = 711,509,167.80/x
  3. Step 3: Cross multiply
    1,118,648,086.20x = 1,677,972,129.30 × 711,509,167.80
  4. Step 4: Simplify right side
    1,118,648,086.20x = 1,193,892,553,309,836,800
  5. Step 5: Solve for x
    x = 1,193,892,553,309,836,800/1,118,648,086.20
  6. Step 6: Final answer
    x = 1,067,263,751.70

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Double scale
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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.