Home / 208,472,291.07-312,732,165.68-75,587,726.78

Finding the Fourth Proportional to 208,472,291.07, 312,732,165.68 and 75,587,726.78

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Solution

The fourth proportional to 208,472,291.07, 312,732,165.68 and 75,587,726.78 is: 113,390,193.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,472,291.07 : 312,732,165.68 = 75,587,726.78 : x
  2. Step 2: Convert to fraction form
    208,472,291.07/312,732,165.68 = 75,587,726.78/x
  3. Step 3: Cross multiply
    208,472,291.07x = 312,732,165.68 × 75,587,726.78
  4. Step 4: Simplify right side
    208,472,291.07x = 23,638,713,494,737,532
  5. Step 5: Solve for x
    x = 23,638,713,494,737,532/208,472,291.07
  6. Step 6: Final answer
    x = 113,390,193.84

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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.