Home / 215,100,692,987.31-296,864,986,461.36-122,424,081,685.44

Finding the Fourth Proportional to 215,100,692,987.31, 296,864,986,461.36 and 122,424,081,685.44

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Solution

The fourth proportional to 215,100,692,987.31, 296,864,986,461.36 and 122,424,081,685.44 is: 168,960,047,721.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,100,692,987.31 : 296,864,986,461.36 = 122,424,081,685.44 : x
  2. Step 2: Convert to fraction form
    215,100,692,987.31/296,864,986,461.36 = 122,424,081,685.44/x
  3. Step 3: Cross multiply
    215,100,692,987.31x = 296,864,986,461.36 × 122,424,081,685.44
  4. Step 4: Simplify right side
    215,100,692,987.31x = 36,343,423,352,092,573,564,928
  5. Step 5: Solve for x
    x = 36,343,423,352,092,573,564,928/215,100,692,987.31
  6. Step 6: Final answer
    x = 168,960,047,721.64

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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.