Home / 77,720,147.52-107,208,841.74-50,218,075.77

Finding the Fourth Proportional to 77,720,147.52, 107,208,841.74 and 50,218,075.77

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Solution

The fourth proportional to 77,720,147.52, 107,208,841.74 and 50,218,075.77 is: 69,271,892.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,720,147.52 : 107,208,841.74 = 50,218,075.77 : x
  2. Step 2: Convert to fraction form
    77,720,147.52/107,208,841.74 = 50,218,075.77/x
  3. Step 3: Cross multiply
    77,720,147.52x = 107,208,841.74 × 50,218,075.77
  4. Step 4: Simplify right side
    77,720,147.52x = 5,383,821,737,713,259
  5. Step 5: Solve for x
    x = 5,383,821,737,713,259/77,720,147.52
  6. Step 6: Final answer
    x = 69,271,892.93

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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.