Home / 156,668,099.32-216,206,843.64-86,102,429.08

Finding the Fourth Proportional to 156,668,099.32, 216,206,843.64 and 86,102,429.08

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Solution

The fourth proportional to 156,668,099.32, 216,206,843.64 and 86,102,429.08 is: 118,824,026.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,668,099.32 : 216,206,843.64 = 86,102,429.08 : x
  2. Step 2: Convert to fraction form
    156,668,099.32/216,206,843.64 = 86,102,429.08/x
  3. Step 3: Cross multiply
    156,668,099.32x = 216,206,843.64 × 86,102,429.08
  4. Step 4: Simplify right side
    156,668,099.32x = 18,615,934,421,123,748
  5. Step 5: Solve for x
    x = 18,615,934,421,123,748/156,668,099.32
  6. Step 6: Final answer
    x = 118,824,026.73

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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.