Home / 247,872,455.29-371,728,413.15-81,838,661.67

Finding the Fourth Proportional to 247,872,455.29, 371,728,413.15 and 81,838,661.67

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Solution

The fourth proportional to 247,872,455.29, 371,728,413.15 and 81,838,661.67 is: 122,731,490.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,872,455.29 : 371,728,413.15 = 81,838,661.67 : x
  2. Step 2: Convert to fraction form
    247,872,455.29/371,728,413.15 = 81,838,661.67/x
  3. Step 3: Cross multiply
    247,872,455.29x = 371,728,413.15 × 81,838,661.67
  4. Step 4: Simplify right side
    247,872,455.29x = 30,421,755,836,908,828
  5. Step 5: Solve for x
    x = 30,421,755,836,908,828/247,872,455.29
  6. Step 6: Final answer
    x = 122,731,490.28

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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.