Home / 86,305,573.62-129,509,436.09-31,756,466.11

Finding the Fourth Proportional to 86,305,573.62, 129,509,436.09 and 31,756,466.11

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Solution

The fourth proportional to 86,305,573.62, 129,509,436.09 and 31,756,466.11 is: 47,653,492.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,305,573.62 : 129,509,436.09 = 31,756,466.11 : x
  2. Step 2: Convert to fraction form
    86,305,573.62/129,509,436.09 = 31,756,466.11/x
  3. Step 3: Cross multiply
    86,305,573.62x = 129,509,436.09 × 31,756,466.11
  4. Step 4: Simplify right side
    86,305,573.62x = 4,112,762,017,469,749
  5. Step 5: Solve for x
    x = 4,112,762,017,469,749/86,305,573.62
  6. Step 6: Final answer
    x = 47,653,492.64

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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.