Home / 20,429,848.96-28,193,504.16-11,137,425.28

Finding the Fourth Proportional to 20,429,848.96, 28,193,504.16 and 11,137,425.28

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Solution

The fourth proportional to 20,429,848.96, 28,193,504.16 and 11,137,425.28 is: 15,369,817.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,429,848.96 : 28,193,504.16 = 11,137,425.28 : x
  2. Step 2: Convert to fraction form
    20,429,848.96/28,193,504.16 = 11,137,425.28/x
  3. Step 3: Cross multiply
    20,429,848.96x = 28,193,504.16 × 11,137,425.28
  4. Step 4: Simplify right side
    20,429,848.96x = 314,003,045,963,369.12
  5. Step 5: Solve for x
    x = 314,003,045,963,369.12/20,429,848.96
  6. Step 6: Final answer
    x = 15,369,817.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.