Home / 990,984,270.92-1,367,223,563.68-561,775,514.44

Finding the Fourth Proportional to 990,984,270.92, 1,367,223,563.68 and 561,775,514.44

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Solution

The fourth proportional to 990,984,270.92, 1,367,223,563.68 and 561,775,514.44 is: 775,060,455.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,984,270.92 : 1,367,223,563.68 = 561,775,514.44 : x
  2. Step 2: Convert to fraction form
    990,984,270.92/1,367,223,563.68 = 561,775,514.44/x
  3. Step 3: Cross multiply
    990,984,270.92x = 1,367,223,563.68 × 561,775,514.44
  4. Step 4: Simplify right side
    990,984,270.92x = 768,072,720,840,822,272
  5. Step 5: Solve for x
    x = 768,072,720,840,822,272/990,984,270.92
  6. Step 6: Final answer
    x = 775,060,455.93

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.