Home / 156,812,263.27-216,401,101.44-87,196,149.47

Finding the Fourth Proportional to 156,812,263.27, 216,401,101.44 and 87,196,149.47

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Solution

The fourth proportional to 156,812,263.27, 216,401,101.44 and 87,196,149.47 is: 120,330,785.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,812,263.27 : 216,401,101.44 = 87,196,149.47 : x
  2. Step 2: Convert to fraction form
    156,812,263.27/216,401,101.44 = 87,196,149.47/x
  3. Step 3: Cross multiply
    156,812,263.27x = 216,401,101.44 × 87,196,149.47
  4. Step 4: Simplify right side
    156,812,263.27x = 18,869,342,786,848,888
  5. Step 5: Solve for x
    x = 18,869,342,786,848,888/156,812,263.27
  6. Step 6: Final answer
    x = 120,330,785.32

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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.