Home / 511,956,034.50-706,498,870.42-288,984,649.62

Finding the Fourth Proportional to 511,956,034.50, 706,498,870.42 and 288,984,649.62

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Solution

The fourth proportional to 511,956,034.50, 706,498,870.42 and 288,984,649.62 is: 398,798,558.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,956,034.50 : 706,498,870.42 = 288,984,649.62 : x
  2. Step 2: Convert to fraction form
    511,956,034.50/706,498,870.42 = 288,984,649.62/x
  3. Step 3: Cross multiply
    511,956,034.50x = 706,498,870.42 × 288,984,649.62
  4. Step 4: Simplify right side
    511,956,034.50x = 204,167,328,520,994,528
  5. Step 5: Solve for x
    x = 204,167,328,520,994,528/511,956,034.50
  6. Step 6: Final answer
    x = 398,798,558.40

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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.