Home / 100,331,237.70-138,456,827.15-55,683,950.30

Finding the Fourth Proportional to 100,331,237.70, 138,456,827.15 and 55,683,950.30

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Solution

The fourth proportional to 100,331,237.70, 138,456,827.15 and 55,683,950.30 is: 76,843,695.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,331,237.70 : 138,456,827.15 = 55,683,950.30 : x
  2. Step 2: Convert to fraction form
    100,331,237.70/138,456,827.15 = 55,683,950.30/x
  3. Step 3: Cross multiply
    100,331,237.70x = 138,456,827.15 × 55,683,950.30
  4. Step 4: Simplify right side
    100,331,237.70x = 7,709,823,081,807,235
  5. Step 5: Solve for x
    x = 7,709,823,081,807,235/100,331,237.70
  6. Step 6: Final answer
    x = 76,843,695.53

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1.5x scale

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.