Home / 87,006,319.70-120,065,972.36-47,847,975.35

Finding the Fourth Proportional to 87,006,319.70, 120,065,972.36 and 47,847,975.35

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Solution

The fourth proportional to 87,006,319.70, 120,065,972.36 and 47,847,975.35 is: 66,028,694.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,006,319.70 : 120,065,972.36 = 47,847,975.35 : x
  2. Step 2: Convert to fraction form
    87,006,319.70/120,065,972.36 = 47,847,975.35/x
  3. Step 3: Cross multiply
    87,006,319.70x = 120,065,972.36 × 47,847,975.35
  4. Step 4: Simplify right side
    87,006,319.70x = 5,744,913,685,015,492
  5. Step 5: Solve for x
    x = 5,744,913,685,015,492/87,006,319.70
  6. Step 6: Final answer
    x = 66,028,694.30

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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.