Home / 863,885,196.42-1,192,195,406.66-487,554,929.75

Finding the Fourth Proportional to 863,885,196.42, 1,192,195,406.66 and 487,554,929.75

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Solution

The fourth proportional to 863,885,196.42, 1,192,195,406.66 and 487,554,929.75 is: 672,844,899.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,885,196.42 : 1,192,195,406.66 = 487,554,929.75 : x
  2. Step 2: Convert to fraction form
    863,885,196.42/1,192,195,406.66 = 487,554,929.75/x
  3. Step 3: Cross multiply
    863,885,196.42x = 1,192,195,406.66 × 487,554,929.75
  4. Step 4: Simplify right side
    863,885,196.42x = 581,260,747,733,990,272
  5. Step 5: Solve for x
    x = 581,260,747,733,990,272/863,885,196.42
  6. Step 6: Final answer
    x = 672,844,899.00

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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.