Home / 20,139,021.90-30,208,532.85-5,762,558.70

Finding the Fourth Proportional to 20,139,021.90, 30,208,532.85 and 5,762,558.70

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Solution

The fourth proportional to 20,139,021.90, 30,208,532.85 and 5,762,558.70 is: 8,643,838.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,139,021.90 : 30,208,532.85 = 5,762,558.70 : x
  2. Step 2: Convert to fraction form
    20,139,021.90/30,208,532.85 = 5,762,558.70/x
  3. Step 3: Cross multiply
    20,139,021.90x = 30,208,532.85 × 5,762,558.70
  4. Step 4: Simplify right side
    20,139,021.90x = 174,078,443,789,003.31
  5. Step 5: Solve for x
    x = 174,078,443,789,003.31/20,139,021.90
  6. Step 6: Final answer
    x = 8,643,838.05

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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.