Home / 13,887,476.20-20,828,103.90-9,128,564.20

Finding the Fourth Proportional to 13,887,476.20, 20,828,103.90 and 9,128,564.20

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Solution

The fourth proportional to 13,887,476.20, 20,828,103.90 and 9,128,564.20 is: 13,690,801.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,887,476.20 : 20,828,103.90 = 9,128,564.20 : x
  2. Step 2: Convert to fraction form
    13,887,476.20/20,828,103.90 = 9,128,564.20/x
  3. Step 3: Cross multiply
    13,887,476.20x = 20,828,103.90 × 9,128,564.20
  4. Step 4: Simplify right side
    13,887,476.20x = 190,130,683,615,420.34
  5. Step 5: Solve for x
    x = 190,130,683,615,420.34/13,887,476.20
  6. Step 6: Final answer
    x = 13,690,801.76

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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.