Home / 8,455,421.70-12,683,071.80-2,065,615.20

Finding the Fourth Proportional to 8,455,421.70, 12,683,071.80 and 2,065,615.20

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Solution

The fourth proportional to 8,455,421.70, 12,683,071.80 and 2,065,615.20 is: 3,098,407.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455,421.70 : 12,683,071.80 = 2,065,615.20 : x
  2. Step 2: Convert to fraction form
    8,455,421.70/12,683,071.80 = 2,065,615.20/x
  3. Step 3: Cross multiply
    8,455,421.70x = 12,683,071.80 × 2,065,615.20
  4. Step 4: Simplify right side
    8,455,421.70x = 26,198,345,892,771.36
  5. Step 5: Solve for x
    x = 26,198,345,892,771.36/8,455,421.70
  6. Step 6: Final answer
    x = 3,098,407.96

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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.