Home / 5,207,856.60-7,811,784.90-1,421,722.20

Finding the Fourth Proportional to 5,207,856.60, 7,811,784.90 and 1,421,722.20

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Solution

The fourth proportional to 5,207,856.60, 7,811,784.90 and 1,421,722.20 is: 2,132,583.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,207,856.60 : 7,811,784.90 = 1,421,722.20 : x
  2. Step 2: Convert to fraction form
    5,207,856.60/7,811,784.90 = 1,421,722.20/x
  3. Step 3: Cross multiply
    5,207,856.60x = 7,811,784.90 × 1,421,722.20
  4. Step 4: Simplify right side
    5,207,856.60x = 11,106,188,013,954.78
  5. Step 5: Solve for x
    x = 11,106,188,013,954.78/5,207,856.60
  6. Step 6: Final answer
    x = 2,132,583.30

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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.