Home / 299,162,378.70-409,850,547.10-287,975,098.13

Finding the Fourth Proportional to 299,162,378.70, 409,850,547.10 and 287,975,098.13

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Solution

The fourth proportional to 299,162,378.70, 409,850,547.10 and 287,975,098.13 is: 394,524,044.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,162,378.70 : 409,850,547.10 = 287,975,098.13 : x
  2. Step 2: Convert to fraction form
    299,162,378.70/409,850,547.10 = 287,975,098.13/x
  3. Step 3: Cross multiply
    299,162,378.70x = 409,850,547.10 × 287,975,098.13
  4. Step 4: Simplify right side
    299,162,378.70x = 118,026,751,516,987,504
  5. Step 5: Solve for x
    x = 118,026,751,516,987,504/299,162,378.70
  6. Step 6: Final answer
    x = 394,524,044.20

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.