Home / 128,507,025.36-192,837,132.86-46,632,291.76

Finding the Fourth Proportional to 128,507,025.36, 192,837,132.86 and 46,632,291.76

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Solution

The fourth proportional to 128,507,025.36, 192,837,132.86 and 46,632,291.76 is: 69,976,232.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,507,025.36 : 192,837,132.86 = 46,632,291.76 : x
  2. Step 2: Convert to fraction form
    128,507,025.36/192,837,132.86 = 46,632,291.76/x
  3. Step 3: Cross multiply
    128,507,025.36x = 192,837,132.86 × 46,632,291.76
  4. Step 4: Simplify right side
    128,507,025.36x = 8,992,437,441,689,403
  5. Step 5: Solve for x
    x = 8,992,437,441,689,403/128,507,025.36
  6. Step 6: Final answer
    x = 69,976,232.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.