Home / 128,011,192.40-191,733,353.40-105,336,376.40

Finding the Fourth Proportional to 128,011,192.40, 191,733,353.40 and 105,336,376.40

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Solution

The fourth proportional to 128,011,192.40, 191,733,353.40 and 105,336,376.40 is: 157,771,334.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,011,192.40 : 191,733,353.40 = 105,336,376.40 : x
  2. Step 2: Convert to fraction form
    128,011,192.40/191,733,353.40 = 105,336,376.40/x
  3. Step 3: Cross multiply
    128,011,192.40x = 191,733,353.40 × 105,336,376.40
  4. Step 4: Simplify right side
    128,011,192.40x = 20,196,496,682,176,620
  5. Step 5: Solve for x
    x = 20,196,496,682,176,620/128,011,192.40
  6. Step 6: Final answer
    x = 157,771,334.71

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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.