Home / 465,239,395.84-642,032,915.52-266,985,126.40

Finding the Fourth Proportional to 465,239,395.84, 642,032,915.52 and 266,985,126.40

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Solution

The fourth proportional to 465,239,395.84, 642,032,915.52 and 266,985,126.40 is: 368,440,937.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,239,395.84 : 642,032,915.52 = 266,985,126.40 : x
  2. Step 2: Convert to fraction form
    465,239,395.84/642,032,915.52 = 266,985,126.40/x
  3. Step 3: Cross multiply
    465,239,395.84x = 642,032,915.52 × 266,985,126.40
  4. Step 4: Simplify right side
    465,239,395.84x = 171,413,239,103,067,712
  5. Step 5: Solve for x
    x = 171,413,239,103,067,712/465,239,395.84
  6. Step 6: Final answer
    x = 368,440,937.37

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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.