Home / 602,413,827.83-831,660,949.86-421,639,040.69

Finding the Fourth Proportional to 602,413,827.83, 831,660,949.86 and 421,639,040.69

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Solution

The fourth proportional to 602,413,827.83, 831,660,949.86 and 421,639,040.69 is: 582,092,755.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,413,827.83 : 831,660,949.86 = 421,639,040.69 : x
  2. Step 2: Convert to fraction form
    602,413,827.83/831,660,949.86 = 421,639,040.69/x
  3. Step 3: Cross multiply
    602,413,827.83x = 831,660,949.86 × 421,639,040.69
  4. Step 4: Simplify right side
    602,413,827.83x = 350,660,725,078,304,576
  5. Step 5: Solve for x
    x = 350,660,725,078,304,576/602,413,827.83
  6. Step 6: Final answer
    x = 582,092,755.64

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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.