Home / 20,280,271.84-30,420,459.60-5,134,204.96

Finding the Fourth Proportional to 20,280,271.84, 30,420,459.60 and 5,134,204.96

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Solution

The fourth proportional to 20,280,271.84, 30,420,459.60 and 5,134,204.96 is: 7,701,320.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,280,271.84 : 30,420,459.60 = 5,134,204.96 : x
  2. Step 2: Convert to fraction form
    20,280,271.84/30,420,459.60 = 5,134,204.96/x
  3. Step 3: Cross multiply
    20,280,271.84x = 30,420,459.60 × 5,134,204.96
  4. Step 4: Simplify right side
    20,280,271.84x = 156,184,874,563,799.62
  5. Step 5: Solve for x
    x = 156,184,874,563,799.62/20,280,271.84
  6. Step 6: Final answer
    x = 7,701,320.56

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1.5x scale

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.