Home / 156,812,274.72-216,401,117.22-87,196,160.91

Finding the Fourth Proportional to 156,812,274.72, 216,401,117.22 and 87,196,160.91

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Solution

The fourth proportional to 156,812,274.72, 216,401,117.22 and 87,196,160.91 is: 120,330,801.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,812,274.72 : 216,401,117.22 = 87,196,160.91 : x
  2. Step 2: Convert to fraction form
    156,812,274.72/216,401,117.22 = 87,196,160.91/x
  3. Step 3: Cross multiply
    156,812,274.72x = 216,401,117.22 × 87,196,160.91
  4. Step 4: Simplify right side
    156,812,274.72x = 18,869,346,638,218,892
  5. Step 5: Solve for x
    x = 18,869,346,638,218,892/156,812,274.72
  6. Step 6: Final answer
    x = 120,330,801.09

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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.