Home / 512,487,029.10-768,730,543.65-338,147,809.05

Finding the Fourth Proportional to 512,487,029.10, 768,730,543.65 and 338,147,809.05

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Solution

The fourth proportional to 512,487,029.10, 768,730,543.65 and 338,147,809.05 is: 507,221,713.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,487,029.10 : 768,730,543.65 = 338,147,809.05 : x
  2. Step 2: Convert to fraction form
    512,487,029.10/768,730,543.65 = 338,147,809.05/x
  3. Step 3: Cross multiply
    512,487,029.10x = 768,730,543.65 × 338,147,809.05
  4. Step 4: Simplify right side
    512,487,029.10x = 259,944,549,085,062,880
  5. Step 5: Solve for x
    x = 259,944,549,085,062,880/512,487,029.10
  6. Step 6: Final answer
    x = 507,221,713.58

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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.