Home / 12,938,985.96-19,405,157.43-3,838,930.73

Finding the Fourth Proportional to 12,938,985.96, 19,405,157.43 and 3,838,930.73

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Solution

The fourth proportional to 12,938,985.96, 19,405,157.43 and 3,838,930.73 is: 5,757,410.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,938,985.96 : 19,405,157.43 = 3,838,930.73 : x
  2. Step 2: Convert to fraction form
    12,938,985.96/19,405,157.43 = 3,838,930.73/x
  3. Step 3: Cross multiply
    12,938,985.96x = 19,405,157.43 × 3,838,930.73
  4. Step 4: Simplify right side
    12,938,985.96x = 74,495,055,178,514.83
  5. Step 5: Solve for x
    x = 74,495,055,178,514.83/12,938,985.96
  6. Step 6: Final answer
    x = 5,757,410.62

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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.