Home / 138,452,856.74-191,123,772.83-86,267,675.60

Finding the Fourth Proportional to 138,452,856.74, 191,123,772.83 and 86,267,675.60

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Solution

The fourth proportional to 138,452,856.74, 191,123,772.83 and 86,267,675.60 is: 119,086,048.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,452,856.74 : 191,123,772.83 = 86,267,675.60 : x
  2. Step 2: Convert to fraction form
    138,452,856.74/191,123,772.83 = 86,267,675.60/x
  3. Step 3: Cross multiply
    138,452,856.74x = 191,123,772.83 × 86,267,675.60
  4. Step 4: Simplify right side
    138,452,856.74x = 16,487,803,633,993,006
  5. Step 5: Solve for x
    x = 16,487,803,633,993,006/138,452,856.74
  6. Step 6: Final answer
    x = 119,086,048.65

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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.