Home / 304,558,600,386.45-420,300,947,987.68-167,386,288,760.23

Finding the Fourth Proportional to 304,558,600,386.45, 420,300,947,987.68 and 167,386,288,760.23

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Solution

The fourth proportional to 304,558,600,386.45, 420,300,947,987.68 and 167,386,288,760.23 is: 230,998,618,186.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,558,600,386.45 : 420,300,947,987.68 = 167,386,288,760.23 : x
  2. Step 2: Convert to fraction form
    304,558,600,386.45/420,300,947,987.68 = 167,386,288,760.23/x
  3. Step 3: Cross multiply
    304,558,600,386.45x = 420,300,947,987.68 × 167,386,288,760.23
  4. Step 4: Simplify right side
    304,558,600,386.45x = 70,352,615,846,064,221,585,408
  5. Step 5: Solve for x
    x = 70,352,615,846,064,221,585,408/304,558,600,386.45
  6. Step 6: Final answer
    x = 230,998,618,186.43

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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.