Home / 78,709,557.28-117,953,355.92-37,166,108.64

Finding the Fourth Proportional to 78,709,557.28, 117,953,355.92 and 37,166,108.64

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Solution

The fourth proportional to 78,709,557.28, 117,953,355.92 and 37,166,108.64 is: 55,696,758.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,709,557.28 : 117,953,355.92 = 37,166,108.64 : x
  2. Step 2: Convert to fraction form
    78,709,557.28/117,953,355.92 = 37,166,108.64/x
  3. Step 3: Cross multiply
    78,709,557.28x = 117,953,355.92 × 37,166,108.64
  4. Step 4: Simplify right side
    78,709,557.28x = 4,383,867,240,575,307.50
  5. Step 5: Solve for x
    x = 4,383,867,240,575,307.50/78,709,557.28
  6. Step 6: Final answer
    x = 55,696,758.97

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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.