Home / 129,861,047.50-179,213,878.83-71,914,295.50

Finding the Fourth Proportional to 129,861,047.50, 179,213,878.83 and 71,914,295.50

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Solution

The fourth proportional to 129,861,047.50, 179,213,878.83 and 71,914,295.50 is: 99,244,847.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,861,047.50 : 179,213,878.83 = 71,914,295.50 : x
  2. Step 2: Convert to fraction form
    129,861,047.50/179,213,878.83 = 71,914,295.50/x
  3. Step 3: Cross multiply
    129,861,047.50x = 179,213,878.83 × 71,914,295.50
  4. Step 4: Simplify right side
    129,861,047.50x = 12,888,039,839,881,816
  5. Step 5: Solve for x
    x = 12,888,039,839,881,816/129,861,047.50
  6. Step 6: Final answer
    x = 99,244,847.38

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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.