Home / 13,426,208.40-20,139,312.60-12,082,515.60

Finding the Fourth Proportional to 13,426,208.40, 20,139,312.60 and 12,082,515.60

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Solution

The fourth proportional to 13,426,208.40, 20,139,312.60 and 12,082,515.60 is: 18,123,773.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426,208.40 : 20,139,312.60 = 12,082,515.60 : x
  2. Step 2: Convert to fraction form
    13,426,208.40/20,139,312.60 = 12,082,515.60/x
  3. Step 3: Cross multiply
    13,426,208.40x = 20,139,312.60 × 12,082,515.60
  4. Step 4: Simplify right side
    13,426,208.40x = 243,333,558,662,776.56
  5. Step 5: Solve for x
    x = 243,333,558,662,776.56/13,426,208.40
  6. Step 6: Final answer
    x = 18,123,773.40

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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.