Home / 77,281,742.89-115,940,521.78-25,464,490.32

Finding the Fourth Proportional to 77,281,742.89, 115,940,521.78 and 25,464,490.32

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Solution

The fourth proportional to 77,281,742.89, 115,940,521.78 and 25,464,490.32 is: 38,202,636.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,281,742.89 : 115,940,521.78 = 25,464,490.32 : x
  2. Step 2: Convert to fraction form
    77,281,742.89/115,940,521.78 = 25,464,490.32/x
  3. Step 3: Cross multiply
    77,281,742.89x = 115,940,521.78 × 25,464,490.32
  4. Step 4: Simplify right side
    77,281,742.89x = 2,952,366,294,435,237
  5. Step 5: Solve for x
    x = 2,952,366,294,435,237/77,281,742.89
  6. Step 6: Final answer
    x = 38,202,636.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.