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Finding the Fourth Proportional to 261,645,603.58, 392,468,405.37 and 261,645,603.58

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Solution

The fourth proportional to 261,645,603.58, 392,468,405.37 and 261,645,603.58 is: 392,468,405.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,645,603.58 : 392,468,405.37 = 261,645,603.58 : x
  2. Step 2: Convert to fraction form
    261,645,603.58/392,468,405.37 = 261,645,603.58/x
  3. Step 3: Cross multiply
    261,645,603.58x = 392,468,405.37 × 261,645,603.58
  4. Step 4: Simplify right side
    261,645,603.58x = 102,687,632,805,843,184
  5. Step 5: Solve for x
    x = 102,687,632,805,843,184/261,645,603.58
  6. Step 6: Final answer
    x = 392,468,405.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.