Home / 87,260,859,617.35-120,419,931,880.61-47,162,839,005.85

Finding the Fourth Proportional to 87,260,859,617.35, 120,419,931,880.61 and 47,162,839,005.85

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Solution

The fourth proportional to 87,260,859,617.35, 120,419,931,880.61 and 47,162,839,005.85 is: 65,084,688,430.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,260,859,617.35 : 120,419,931,880.61 = 47,162,839,005.85 : x
  2. Step 2: Convert to fraction form
    87,260,859,617.35/120,419,931,880.61 = 47,162,839,005.85/x
  3. Step 3: Cross multiply
    87,260,859,617.35x = 120,419,931,880.61 × 47,162,839,005.85
  4. Step 4: Simplify right side
    87,260,859,617.35x = 5,679,345,860,380,633,071,616
  5. Step 5: Solve for x
    x = 5,679,345,860,380,633,071,616/87,260,859,617.35
  6. Step 6: Final answer
    x = 65,084,688,430.59

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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.