Home / 511,956,034.69-706,498,870.68-288,984,649.81

Finding the Fourth Proportional to 511,956,034.69, 706,498,870.68 and 288,984,649.81

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Solution

The fourth proportional to 511,956,034.69, 706,498,870.68 and 288,984,649.81 is: 398,798,558.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,956,034.69 : 706,498,870.68 = 288,984,649.81 : x
  2. Step 2: Convert to fraction form
    511,956,034.69/706,498,870.68 = 288,984,649.81/x
  3. Step 3: Cross multiply
    511,956,034.69x = 706,498,870.68 × 288,984,649.81
  4. Step 4: Simplify right side
    511,956,034.69x = 204,167,328,729,642,848
  5. Step 5: Solve for x
    x = 204,167,328,729,642,848/511,956,034.69
  6. Step 6: Final answer
    x = 398,798,558.66

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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.