Home / 20,520,434.19-30,763,266.66-8,997,168.45

Finding the Fourth Proportional to 20,520,434.19, 30,763,266.66 and 8,997,168.45

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Solution

The fourth proportional to 20,520,434.19, 30,763,266.66 and 8,997,168.45 is: 13,488,130.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,520,434.19 : 30,763,266.66 = 8,997,168.45 : x
  2. Step 2: Convert to fraction form
    20,520,434.19/30,763,266.66 = 8,997,168.45/x
  3. Step 3: Cross multiply
    20,520,434.19x = 30,763,266.66 × 8,997,168.45
  4. Step 4: Simplify right side
    20,520,434.19x = 276,782,292,212,288.84
  5. Step 5: Solve for x
    x = 276,782,292,212,288.84/20,520,434.19
  6. Step 6: Final answer
    x = 13,488,130.40

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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.