Home / 77,679,764.08-107,197,546.32-42,872,453.49

Finding the Fourth Proportional to 77,679,764.08, 107,197,546.32 and 42,872,453.49

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Solution

The fourth proportional to 77,679,764.08, 107,197,546.32 and 42,872,453.49 is: 59,163,694.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,679,764.08 : 107,197,546.32 = 42,872,453.49 : x
  2. Step 2: Convert to fraction form
    77,679,764.08/107,197,546.32 = 42,872,453.49/x
  3. Step 3: Cross multiply
    77,679,764.08x = 107,197,546.32 × 42,872,453.49
  4. Step 4: Simplify right side
    77,679,764.08x = 4,595,821,818,846,321
  5. Step 5: Solve for x
    x = 4,595,821,818,846,321/77,679,764.08
  6. Step 6: Final answer
    x = 59,163,694.35

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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.