Home / 87,843,029.16-121,152,696.26-77,223,713.42

Finding the Fourth Proportional to 87,843,029.16, 121,152,696.26 and 77,223,713.42

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Solution

The fourth proportional to 87,843,029.16, 121,152,696.26 and 77,223,713.42 is: 106,506,585.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,843,029.16 : 121,152,696.26 = 77,223,713.42 : x
  2. Step 2: Convert to fraction form
    87,843,029.16/121,152,696.26 = 77,223,713.42/x
  3. Step 3: Cross multiply
    87,843,029.16x = 121,152,696.26 × 77,223,713.42
  4. Step 4: Simplify right side
    87,843,029.16x = 9,355,861,096,042,546
  5. Step 5: Solve for x
    x = 9,355,861,096,042,546/87,843,029.16
  6. Step 6: Final answer
    x = 106,506,585.50

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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.