Home / 1,078,567,672.78-1,489,451,350.36-1,019,808,054.39

Finding the Fourth Proportional to 1,078,567,672.78, 1,489,451,350.36 and 1,019,808,054.39

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Solution

The fourth proportional to 1,078,567,672.78, 1,489,451,350.36 and 1,019,808,054.39 is: 1,408,307,074.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,567,672.78 : 1,489,451,350.36 = 1,019,808,054.39 : x
  2. Step 2: Convert to fraction form
    1,078,567,672.78/1,489,451,350.36 = 1,019,808,054.39/x
  3. Step 3: Cross multiply
    1,078,567,672.78x = 1,489,451,350.36 × 1,019,808,054.39
  4. Step 4: Simplify right side
    1,078,567,672.78x = 1,518,954,483,719,189,760
  5. Step 5: Solve for x
    x = 1,518,954,483,719,189,760/1,078,567,672.78
  6. Step 6: Final answer
    x = 1,408,307,074.34

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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.