Home / 8,271,709.20-12,407,563.80-6,358,521.60

Finding the Fourth Proportional to 8,271,709.20, 12,407,563.80 and 6,358,521.60

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Solution

The fourth proportional to 8,271,709.20, 12,407,563.80 and 6,358,521.60 is: 9,537,782.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,271,709.20 : 12,407,563.80 = 6,358,521.60 : x
  2. Step 2: Convert to fraction form
    8,271,709.20/12,407,563.80 = 6,358,521.60/x
  3. Step 3: Cross multiply
    8,271,709.20x = 12,407,563.80 × 6,358,521.60
  4. Step 4: Simplify right side
    8,271,709.20x = 78,893,762,425,678.08
  5. Step 5: Solve for x
    x = 78,893,762,425,678.08/8,271,709.20
  6. Step 6: Final answer
    x = 9,537,782.40

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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.