Home / 156,136,824.72-215,470,093.41-86,523,367.86

Finding the Fourth Proportional to 156,136,824.72, 215,470,093.41 and 86,523,367.86

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Solution

The fourth proportional to 156,136,824.72, 215,470,093.41 and 86,523,367.86 is: 119,402,954.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,136,824.72 : 215,470,093.41 = 86,523,367.86 : x
  2. Step 2: Convert to fraction form
    156,136,824.72/215,470,093.41 = 86,523,367.86/x
  3. Step 3: Cross multiply
    156,136,824.72x = 215,470,093.41 × 86,523,367.86
  4. Step 4: Simplify right side
    156,136,824.72x = 18,643,198,154,941,992
  5. Step 5: Solve for x
    x = 18,643,198,154,941,992/156,136,824.72
  6. Step 6: Final answer
    x = 119,402,954.35

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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.