Home / 139,885,270.36-193,042,929.18-77,163,769.24

Finding the Fourth Proportional to 139,885,270.36, 193,042,929.18 and 77,163,769.24

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Solution

The fourth proportional to 139,885,270.36, 193,042,929.18 and 77,163,769.24 is: 106,486,694.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,885,270.36 : 193,042,929.18 = 77,163,769.24 : x
  2. Step 2: Convert to fraction form
    139,885,270.36/193,042,929.18 = 77,163,769.24/x
  3. Step 3: Cross multiply
    139,885,270.36x = 193,042,929.18 × 77,163,769.24
  4. Step 4: Simplify right side
    139,885,270.36x = 14,895,920,040,659,182
  5. Step 5: Solve for x
    x = 14,895,920,040,659,182/139,885,270.36
  6. Step 6: Final answer
    x = 106,486,694.43

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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.