Home / 511,956,035.69-706,498,872.05-288,984,650.81

Finding the Fourth Proportional to 511,956,035.69, 706,498,872.05 and 288,984,650.81

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Solution

The fourth proportional to 511,956,035.69, 706,498,872.05 and 288,984,650.81 is: 398,798,560.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,956,035.69 : 706,498,872.05 = 288,984,650.81 : x
  2. Step 2: Convert to fraction form
    511,956,035.69/706,498,872.05 = 288,984,650.81/x
  3. Step 3: Cross multiply
    511,956,035.69x = 706,498,872.05 × 288,984,650.81
  4. Step 4: Simplify right side
    511,956,035.69x = 204,167,329,837,028,096
  5. Step 5: Solve for x
    x = 204,167,329,837,028,096/511,956,035.69
  6. Step 6: Final answer
    x = 398,798,560.04

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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.