Home / 15,529,615.80-23,294,423.70-12,789,742.20

Finding the Fourth Proportional to 15,529,615.80, 23,294,423.70 and 12,789,742.20

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Solution

The fourth proportional to 15,529,615.80, 23,294,423.70 and 12,789,742.20 is: 19,184,613.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,529,615.80 : 23,294,423.70 = 12,789,742.20 : x
  2. Step 2: Convert to fraction form
    15,529,615.80/23,294,423.70 = 12,789,742.20/x
  3. Step 3: Cross multiply
    15,529,615.80x = 23,294,423.70 × 12,789,742.20
  4. Step 4: Simplify right side
    15,529,615.80x = 297,929,673,820,570.12
  5. Step 5: Solve for x
    x = 297,929,673,820,570.12/15,529,615.80
  6. Step 6: Final answer
    x = 19,184,613.30

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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.