Home / 13,207,981.60-19,811,972.40-5,649,709.60

Finding the Fourth Proportional to 13,207,981.60, 19,811,972.40 and 5,649,709.60

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Solution

The fourth proportional to 13,207,981.60, 19,811,972.40 and 5,649,709.60 is: 8,474,564.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207,981.60 : 19,811,972.40 = 5,649,709.60 : x
  2. Step 2: Convert to fraction form
    13,207,981.60/19,811,972.40 = 5,649,709.60/x
  3. Step 3: Cross multiply
    13,207,981.60x = 19,811,972.40 × 5,649,709.60
  4. Step 4: Simplify right side
    13,207,981.60x = 111,931,890,663,215.03
  5. Step 5: Solve for x
    x = 111,931,890,663,215.03/13,207,981.60
  6. Step 6: Final answer
    x = 8,474,564.40

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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.