Home / 987,530,615,999.70-1,481,295,923,999.50-316,828,265,442.90

Finding the Fourth Proportional to 987,530,615,999.70, 1,481,295,923,999.50 and 316,828,265,442.90

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Solution

The fourth proportional to 987,530,615,999.70, 1,481,295,923,999.50 and 316,828,265,442.90 is: 475,242,398,164.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,530,615,999.70 : 1,481,295,923,999.50 = 316,828,265,442.90 : x
  2. Step 2: Convert to fraction form
    987,530,615,999.70/1,481,295,923,999.50 = 316,828,265,442.90/x
  3. Step 3: Cross multiply
    987,530,615,999.70x = 1,481,295,923,999.50 × 316,828,265,442.90
  4. Step 4: Simplify right side
    987,530,615,999.70x = 469,316,418,208,399,418,720,256
  5. Step 5: Solve for x
    x = 469,316,418,208,399,418,720,256/987,530,615,999.70
  6. Step 6: Final answer
    x = 475,242,398,164.33

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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.