Home / 689,731,116.74-1,035,053,617.92-379,055,690.25

Finding the Fourth Proportional to 689,731,116.74, 1,035,053,617.92 and 379,055,690.25

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Solution

The fourth proportional to 689,731,116.74, 1,035,053,617.92 and 379,055,690.25 is: 568,834,657.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,731,116.74 : 1,035,053,617.92 = 379,055,690.25 : x
  2. Step 2: Convert to fraction form
    689,731,116.74/1,035,053,617.92 = 379,055,690.25/x
  3. Step 3: Cross multiply
    689,731,116.74x = 1,035,053,617.92 × 379,055,690.25
  4. Step 4: Simplify right side
    689,731,116.74x = 392,342,963,581,250,112
  5. Step 5: Solve for x
    x = 392,342,963,581,250,112/689,731,116.74
  6. Step 6: Final answer
    x = 568,834,657.53

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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.