Home / 77,691,069.74-107,213,686.90-42,883,767.56

Finding the Fourth Proportional to 77,691,069.74, 107,213,686.90 and 42,883,767.56

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Solution

The fourth proportional to 77,691,069.74, 107,213,686.90 and 42,883,767.56 is: 59,179,605.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,691,069.74 : 107,213,686.90 = 42,883,767.56 : x
  2. Step 2: Convert to fraction form
    77,691,069.74/107,213,686.90 = 42,883,767.56/x
  3. Step 3: Cross multiply
    77,691,069.74x = 107,213,686.90 × 42,883,767.56
  4. Step 4: Simplify right side
    77,691,069.74x = 4,597,726,828,270,217
  5. Step 5: Solve for x
    x = 4,597,726,828,270,217/77,691,069.74
  6. Step 6: Final answer
    x = 59,179,605.12

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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.