Home / 156,980,611.11-216,633,243.90-87,382,433.49

Finding the Fourth Proportional to 156,980,611.11, 216,633,243.90 and 87,382,433.49

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Solution

The fourth proportional to 156,980,611.11, 216,633,243.90 and 87,382,433.49 is: 120,587,758.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,980,611.11 : 216,633,243.90 = 87,382,433.49 : x
  2. Step 2: Convert to fraction form
    156,980,611.11/216,633,243.90 = 87,382,433.49/x
  3. Step 3: Cross multiply
    156,980,611.11x = 216,633,243.90 × 87,382,433.49
  4. Step 4: Simplify right side
    156,980,611.11x = 18,929,940,026,814,696
  5. Step 5: Solve for x
    x = 18,929,940,026,814,696/156,980,611.11
  6. Step 6: Final answer
    x = 120,587,758.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.