Home / 128,011,513.43-191,939,512.23-50,195,192.10

Finding the Fourth Proportional to 128,011,513.43, 191,939,512.23 and 50,195,192.10

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Solution

The fourth proportional to 128,011,513.43, 191,939,512.23 and 50,195,192.10 is: 75,262,298.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,011,513.43 : 191,939,512.23 = 50,195,192.10 : x
  2. Step 2: Convert to fraction form
    128,011,513.43/191,939,512.23 = 50,195,192.10/x
  3. Step 3: Cross multiply
    128,011,513.43x = 191,939,512.23 × 50,195,192.10
  4. Step 4: Simplify right side
    128,011,513.43x = 9,634,440,687,965,150
  5. Step 5: Solve for x
    x = 9,634,440,687,965,150/128,011,513.43
  6. Step 6: Final answer
    x = 75,262,298.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.