Home / 77,621,930.66-107,116,387.80-42,813,873.56

Finding the Fourth Proportional to 77,621,930.66, 107,116,387.80 and 42,813,873.56

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Solution

The fourth proportional to 77,621,930.66, 107,116,387.80 and 42,813,873.56 is: 59,082,110.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,621,930.66 : 107,116,387.80 = 42,813,873.56 : x
  2. Step 2: Convert to fraction form
    77,621,930.66/107,116,387.80 = 42,813,873.56/x
  3. Step 3: Cross multiply
    77,621,930.66x = 107,116,387.80 × 42,813,873.56
  4. Step 4: Simplify right side
    77,621,930.66x = 4,586,067,483,473,127
  5. Step 5: Solve for x
    x = 4,586,067,483,473,127/77,621,930.66
  6. Step 6: Final answer
    x = 59,082,110.49

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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.