Home / 1,045,798,876.20-1,568,698,314.30-318,786,421.80

Finding the Fourth Proportional to 1,045,798,876.20, 1,568,698,314.30 and 318,786,421.80

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Solution

The fourth proportional to 1,045,798,876.20, 1,568,698,314.30 and 318,786,421.80 is: 478,179,632.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045,798,876.20 : 1,568,698,314.30 = 318,786,421.80 : x
  2. Step 2: Convert to fraction form
    1,045,798,876.20/1,568,698,314.30 = 318,786,421.80/x
  3. Step 3: Cross multiply
    1,045,798,876.20x = 1,568,698,314.30 × 318,786,421.80
  4. Step 4: Simplify right side
    1,045,798,876.20x = 500,079,722,499,388,800
  5. Step 5: Solve for x
    x = 500,079,722,499,388,800/1,045,798,876.20
  6. Step 6: Final answer
    x = 478,179,632.70

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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.