Home / 638,793,040.49-958,266,054.71-196,077,730.79

Finding the Fourth Proportional to 638,793,040.49, 958,266,054.71 and 196,077,730.79

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Solution

The fourth proportional to 638,793,040.49, 958,266,054.71 and 196,077,730.79 is: 294,140,076.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,793,040.49 : 958,266,054.71 = 196,077,730.79 : x
  2. Step 2: Convert to fraction form
    638,793,040.49/958,266,054.71 = 196,077,730.79/x
  3. Step 3: Cross multiply
    638,793,040.49x = 958,266,054.71 × 196,077,730.79
  4. Step 4: Simplify right side
    638,793,040.49x = 187,894,633,499,642,400
  5. Step 5: Solve for x
    x = 187,894,633,499,642,400/638,793,040.49
  6. Step 6: Final answer
    x = 294,140,076.03

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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.