Home / 389,943,960.45-538,180,421.24-246,903,018.97

Finding the Fourth Proportional to 389,943,960.45, 538,180,421.24 and 246,903,018.97

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Solution

The fourth proportional to 389,943,960.45, 538,180,421.24 and 246,903,018.97 is: 340,762,735.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,943,960.45 : 538,180,421.24 = 246,903,018.97 : x
  2. Step 2: Convert to fraction form
    389,943,960.45/538,180,421.24 = 246,903,018.97/x
  3. Step 3: Cross multiply
    389,943,960.45x = 538,180,421.24 × 246,903,018.97
  4. Step 4: Simplify right side
    389,943,960.45x = 132,878,370,753,974,112
  5. Step 5: Solve for x
    x = 132,878,370,753,974,112/389,943,960.45
  6. Step 6: Final answer
    x = 340,762,735.75

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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.