Home / 688,799,608.14-1,033,199,489.97-279,856,035.66

Finding the Fourth Proportional to 688,799,608.14, 1,033,199,489.97 and 279,856,035.66

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Solution

The fourth proportional to 688,799,608.14, 1,033,199,489.97 and 279,856,035.66 is: 419,784,085.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,799,608.14 : 1,033,199,489.97 = 279,856,035.66 : x
  2. Step 2: Convert to fraction form
    688,799,608.14/1,033,199,489.97 = 279,856,035.66/x
  3. Step 3: Cross multiply
    688,799,608.14x = 1,033,199,489.97 × 279,856,035.66
  4. Step 4: Simplify right side
    688,799,608.14x = 289,147,113,308,938,176
  5. Step 5: Solve for x
    x = 289,147,113,308,938,176/688,799,608.14
  6. Step 6: Final answer
    x = 419,784,085.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.