Home / 7,000,001.45-10,500,002.18-6,521,704.55

Finding the Fourth Proportional to 7,000,001.45, 10,500,002.18 and 6,521,704.55

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Solution

The fourth proportional to 7,000,001.45, 10,500,002.18 and 6,521,704.55 is: 9,782,556.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,000,001.45 : 10,500,002.18 = 6,521,704.55 : x
  2. Step 2: Convert to fraction form
    7,000,001.45/10,500,002.18 = 6,521,704.55/x
  3. Step 3: Cross multiply
    7,000,001.45x = 10,500,002.18 × 6,521,704.55
  4. Step 4: Simplify right side
    7,000,001.45x = 68,477,911,992,315.91
  5. Step 5: Solve for x
    x = 68,477,911,992,315.91/7,000,001.45
  6. Step 6: Final answer
    x = 9,782,556.83

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Similar ratio
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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.