Home / 529,278,488.92-730,297,281.18-309,219,399.64

Finding the Fourth Proportional to 529,278,488.92, 730,297,281.18 and 309,219,399.64

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Solution

The fourth proportional to 529,278,488.92, 730,297,281.18 and 309,219,399.64 is: 426,660,239.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,278,488.92 : 730,297,281.18 = 309,219,399.64 : x
  2. Step 2: Convert to fraction form
    529,278,488.92/730,297,281.18 = 309,219,399.64/x
  3. Step 3: Cross multiply
    529,278,488.92x = 730,297,281.18 × 309,219,399.64
  4. Step 4: Simplify right side
    529,278,488.92x = 225,822,086,845,203,840
  5. Step 5: Solve for x
    x = 225,822,086,845,203,840/529,278,488.92
  6. Step 6: Final answer
    x = 426,660,239.50

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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.