Home / 549,234,971.20-757,223,029.83-396,343,186.57

Finding the Fourth Proportional to 549,234,971.20, 757,223,029.83 and 396,343,186.57

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Solution

The fourth proportional to 549,234,971.20, 757,223,029.83 and 396,343,186.57 is: 546,433,137.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,234,971.20 : 757,223,029.83 = 396,343,186.57 : x
  2. Step 2: Convert to fraction form
    549,234,971.20/757,223,029.83 = 396,343,186.57/x
  3. Step 3: Cross multiply
    549,234,971.20x = 757,223,029.83 × 396,343,186.57
  4. Step 4: Simplify right side
    549,234,971.20x = 300,120,188,587,012,352
  5. Step 5: Solve for x
    x = 300,120,188,587,012,352/549,234,971.20
  6. Step 6: Final answer
    x = 546,433,137.59

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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.