Home / 76,834,386.32-115,251,774.60-31,396,172.72

Finding the Fourth Proportional to 76,834,386.32, 115,251,774.60 and 31,396,172.72

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Solution

The fourth proportional to 76,834,386.32, 115,251,774.60 and 31,396,172.72 is: 47,094,338.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,834,386.32 : 115,251,774.60 = 31,396,172.72 : x
  2. Step 2: Convert to fraction form
    76,834,386.32/115,251,774.60 = 31,396,172.72/x
  3. Step 3: Cross multiply
    76,834,386.32x = 115,251,774.60 × 31,396,172.72
  4. Step 4: Simplify right side
    76,834,386.32x = 3,618,464,621,628,108.50
  5. Step 5: Solve for x
    x = 3,618,464,621,628,108.50/76,834,386.32
  6. Step 6: Final answer
    x = 47,094,338.81

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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.