Home / 138,745,558.40-208,102,137.32-55,743,950.92

Finding the Fourth Proportional to 138,745,558.40, 208,102,137.32 and 55,743,950.92

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Solution

The fourth proportional to 138,745,558.40, 208,102,137.32 and 55,743,950.92 is: 83,609,417.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,745,558.40 : 208,102,137.32 = 55,743,950.92 : x
  2. Step 2: Convert to fraction form
    138,745,558.40/208,102,137.32 = 55,743,950.92/x
  3. Step 3: Cross multiply
    138,745,558.40x = 208,102,137.32 × 55,743,950.92
  4. Step 4: Simplify right side
    138,745,558.40x = 11,600,435,329,113,180
  5. Step 5: Solve for x
    x = 11,600,435,329,113,180/138,745,558.40
  6. Step 6: Final answer
    x = 83,609,417.58

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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.