Home / 2,985,894,321.78-4,478,674,074.56-915,610,400.22

Finding the Fourth Proportional to 2,985,894,321.78, 4,478,674,074.56 and 915,610,400.22

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Solution

The fourth proportional to 2,985,894,321.78, 4,478,674,074.56 and 915,610,400.22 is: 1,373,364,265.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985,894,321.78 : 4,478,674,074.56 = 915,610,400.22 : x
  2. Step 2: Convert to fraction form
    2,985,894,321.78/4,478,674,074.56 = 915,610,400.22/x
  3. Step 3: Cross multiply
    2,985,894,321.78x = 4,478,674,074.56 × 915,610,400.22
  4. Step 4: Simplify right side
    2,985,894,321.78x = 4,100,720,561,842,715,648
  5. Step 5: Solve for x
    x = 4,100,720,561,842,715,648/2,985,894,321.78
  6. Step 6: Final answer
    x = 1,373,364,265.42

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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.