Home / 20,587,856.60-30,892,844.10-8,621,802.20

Finding the Fourth Proportional to 20,587,856.60, 30,892,844.10 and 8,621,802.20

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Solution

The fourth proportional to 20,587,856.60, 30,892,844.10 and 8,621,802.20 is: 12,937,334.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,587,856.60 : 30,892,844.10 = 8,621,802.20 : x
  2. Step 2: Convert to fraction form
    20,587,856.60/30,892,844.10 = 8,621,802.20/x
  3. Step 3: Cross multiply
    20,587,856.60x = 30,892,844.10 × 8,621,802.20
  4. Step 4: Simplify right side
    20,587,856.60x = 266,351,991,225,637
  5. Step 5: Solve for x
    x = 266,351,991,225,637/20,587,856.60
  6. Step 6: Final answer
    x = 12,937,334.68

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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.