Home / 247,370,635.80-371,101,569.12-81,383,486.76

Finding the Fourth Proportional to 247,370,635.80, 371,101,569.12 and 81,383,486.76

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Solution

The fourth proportional to 247,370,635.80, 371,101,569.12 and 81,383,486.76 is: 122,090,237.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,370,635.80 : 371,101,569.12 = 81,383,486.76 : x
  2. Step 2: Convert to fraction form
    247,370,635.80/371,101,569.12 = 81,383,486.76/x
  3. Step 3: Cross multiply
    247,370,635.80x = 371,101,569.12 × 81,383,486.76
  4. Step 4: Simplify right side
    247,370,635.80x = 30,201,539,637,092,748
  5. Step 5: Solve for x
    x = 30,201,539,637,092,748/247,370,635.80
  6. Step 6: Final answer
    x = 122,090,237.35

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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.