Home / 77,976,267.87-107,603,157.44-42,687,307.70

Finding the Fourth Proportional to 77,976,267.87, 107,603,157.44 and 42,687,307.70

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Solution

The fourth proportional to 77,976,267.87, 107,603,157.44 and 42,687,307.70 is: 58,906,244.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,976,267.87 : 107,603,157.44 = 42,687,307.70 : x
  2. Step 2: Convert to fraction form
    77,976,267.87/107,603,157.44 = 42,687,307.70/x
  3. Step 3: Cross multiply
    77,976,267.87x = 107,603,157.44 × 42,687,307.70
  4. Step 4: Simplify right side
    77,976,267.87x = 4,593,289,091,105,038
  5. Step 5: Solve for x
    x = 4,593,289,091,105,038/77,976,267.87
  6. Step 6: Final answer
    x = 58,906,244.38

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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.