Home / 989,291,256.40-1,483,984,610.64-325,290,575.47

Finding the Fourth Proportional to 989,291,256.40, 1,483,984,610.64 and 325,290,575.47

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Solution

The fourth proportional to 989,291,256.40, 1,483,984,610.64 and 325,290,575.47 is: 487,951,556.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,291,256.40 : 1,483,984,610.64 = 325,290,575.47 : x
  2. Step 2: Convert to fraction form
    989,291,256.40/1,483,984,610.64 = 325,290,575.47/x
  3. Step 3: Cross multiply
    989,291,256.40x = 1,483,984,610.64 × 325,290,575.47
  4. Step 4: Simplify right side
    989,291,256.40x = 482,726,207,989,194,624
  5. Step 5: Solve for x
    x = 482,726,207,989,194,624/989,291,256.40
  6. Step 6: Final answer
    x = 487,951,556.09

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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.