Home / 28,309,136.43-42,463,815.35-8,613,459.35

Finding the Fourth Proportional to 28,309,136.43, 42,463,815.35 and 8,613,459.35

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Solution

The fourth proportional to 28,309,136.43, 42,463,815.35 and 8,613,459.35 is: 12,920,222.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,309,136.43 : 42,463,815.35 = 8,613,459.35 : x
  2. Step 2: Convert to fraction form
    28,309,136.43/42,463,815.35 = 8,613,459.35/x
  3. Step 3: Cross multiply
    28,309,136.43x = 42,463,815.35 × 8,613,459.35
  4. Step 4: Simplify right side
    28,309,136.43x = 365,760,347,107,744.69
  5. Step 5: Solve for x
    x = 365,760,347,107,744.69/28,309,136.43
  6. Step 6: Final answer
    x = 12,920,222.70

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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.