Home / 139,465,621.40-192,456,778.11-75,886,223.07

Finding the Fourth Proportional to 139,465,621.40, 192,456,778.11 and 75,886,223.07

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Solution

The fourth proportional to 139,465,621.40, 192,456,778.11 and 75,886,223.07 is: 104,719,843.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,465,621.40 : 192,456,778.11 = 75,886,223.07 : x
  2. Step 2: Convert to fraction form
    139,465,621.40/192,456,778.11 = 75,886,223.07/x
  3. Step 3: Cross multiply
    139,465,621.40x = 192,456,778.11 × 75,886,223.07
  4. Step 4: Simplify right side
    139,465,621.40x = 14,604,817,995,090,664
  5. Step 5: Solve for x
    x = 14,604,817,995,090,664/139,465,621.40
  6. Step 6: Final answer
    x = 104,719,843.13

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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.