Home / 13,004,931.30-19,507,396.95-12,207,769.80

Finding the Fourth Proportional to 13,004,931.30, 19,507,396.95 and 12,207,769.80

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Solution

The fourth proportional to 13,004,931.30, 19,507,396.95 and 12,207,769.80 is: 18,311,654.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,004,931.30 : 19,507,396.95 = 12,207,769.80 : x
  2. Step 2: Convert to fraction form
    13,004,931.30/19,507,396.95 = 12,207,769.80/x
  3. Step 3: Cross multiply
    13,004,931.30x = 19,507,396.95 × 12,207,769.80
  4. Step 4: Simplify right side
    13,004,931.30x = 238,141,811,362,822.12
  5. Step 5: Solve for x
    x = 238,141,811,362,822.12/13,004,931.30
  6. Step 6: Final answer
    x = 18,311,654.70

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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.