Home / 77,720,148.52-107,208,843.12-50,218,076.77

Finding the Fourth Proportional to 77,720,148.52, 107,208,843.12 and 50,218,076.77

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Solution

The fourth proportional to 77,720,148.52, 107,208,843.12 and 50,218,076.77 is: 69,271,894.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,720,148.52 : 107,208,843.12 = 50,218,076.77 : x
  2. Step 2: Convert to fraction form
    77,720,148.52/107,208,843.12 = 50,218,076.77/x
  3. Step 3: Cross multiply
    77,720,148.52x = 107,208,843.12 × 50,218,076.77
  4. Step 4: Simplify right side
    77,720,148.52x = 5,383,821,914,223,047
  5. Step 5: Solve for x
    x = 5,383,821,914,223,047/77,720,148.52
  6. Step 6: Final answer
    x = 69,271,894.31

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1.5x scale

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.