Home / 685,549,599.75-1,028,000,229.66-265,567,671.39

Finding the Fourth Proportional to 685,549,599.75, 1,028,000,229.66 and 265,567,671.39

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Solution

The fourth proportional to 685,549,599.75, 1,028,000,229.66 and 265,567,671.39 is: 398,225,930.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,549,599.75 : 1,028,000,229.66 = 265,567,671.39 : x
  2. Step 2: Convert to fraction form
    685,549,599.75/1,028,000,229.66 = 265,567,671.39/x
  3. Step 3: Cross multiply
    685,549,599.75x = 1,028,000,229.66 × 265,567,671.39
  4. Step 4: Simplify right side
    685,549,599.75x = 273,003,627,179,191,392
  5. Step 5: Solve for x
    x = 273,003,627,179,191,392/685,549,599.75
  6. Step 6: Final answer
    x = 398,225,930.38

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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.