Home / 12,302,847.60-18,454,271.40-5,479,407.60

Finding the Fourth Proportional to 12,302,847.60, 18,454,271.40 and 5,479,407.60

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Solution

The fourth proportional to 12,302,847.60, 18,454,271.40 and 5,479,407.60 is: 8,219,111.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,302,847.60 : 18,454,271.40 = 5,479,407.60 : x
  2. Step 2: Convert to fraction form
    12,302,847.60/18,454,271.40 = 5,479,407.60/x
  3. Step 3: Cross multiply
    12,302,847.60x = 18,454,271.40 × 5,479,407.60
  4. Step 4: Simplify right side
    12,302,847.60x = 101,118,474,961,622.62
  5. Step 5: Solve for x
    x = 101,118,474,961,622.62/12,302,847.60
  6. Step 6: Final answer
    x = 8,219,111.40

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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.