Home / 13,611,705.70-20,417,558.55-12,123,670.90

Finding the Fourth Proportional to 13,611,705.70, 20,417,558.55 and 12,123,670.90

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Solution

The fourth proportional to 13,611,705.70, 20,417,558.55 and 12,123,670.90 is: 18,185,506.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611,705.70 : 20,417,558.55 = 12,123,670.90 : x
  2. Step 2: Convert to fraction form
    13,611,705.70/20,417,558.55 = 12,123,670.90/x
  3. Step 3: Cross multiply
    13,611,705.70x = 20,417,558.55 × 12,123,670.90
  4. Step 4: Simplify right side
    13,611,705.70x = 247,535,760,441,681.22
  5. Step 5: Solve for x
    x = 247,535,760,441,681.22/13,611,705.70
  6. Step 6: Final answer
    x = 18,185,506.35

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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.