Home / 13,905,830.40-20,833,862.40-11,765,875.20

Finding the Fourth Proportional to 13,905,830.40, 20,833,862.40 and 11,765,875.20

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Solution

The fourth proportional to 13,905,830.40, 20,833,862.40 and 11,765,875.20 is: 17,627,758.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905,830.40 : 20,833,862.40 = 11,765,875.20 : x
  2. Step 2: Convert to fraction form
    13,905,830.40/20,833,862.40 = 11,765,875.20/x
  3. Step 3: Cross multiply
    13,905,830.40x = 20,833,862.40 × 11,765,875.20
  4. Step 4: Simplify right side
    13,905,830.40x = 245,128,624,932,372.44
  5. Step 5: Solve for x
    x = 245,128,624,932,372.44/13,905,830.40
  6. Step 6: Final answer
    x = 17,627,758.85

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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.