Home / 77,278,257.60-115,917,386.40-54,603,441.60

Finding the Fourth Proportional to 77,278,257.60, 115,917,386.40 and 54,603,441.60

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Solution

The fourth proportional to 77,278,257.60, 115,917,386.40 and 54,603,441.60 is: 81,905,162.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,278,257.60 : 115,917,386.40 = 54,603,441.60 : x
  2. Step 2: Convert to fraction form
    77,278,257.60/115,917,386.40 = 54,603,441.60/x
  3. Step 3: Cross multiply
    77,278,257.60x = 115,917,386.40 × 54,603,441.60
  4. Step 4: Simplify right side
    77,278,257.60x = 6,329,488,238,717,035
  5. Step 5: Solve for x
    x = 6,329,488,238,717,035/77,278,257.60
  6. Step 6: Final answer
    x = 81,905,162.40

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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.