Home / 20,390,994.02-28,141,967.90-11,451,573.35

Finding the Fourth Proportional to 20,390,994.02, 28,141,967.90 and 11,451,573.35

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Solution

The fourth proportional to 20,390,994.02, 28,141,967.90 and 11,451,573.35 is: 15,804,516.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,390,994.02 : 28,141,967.90 = 11,451,573.35 : x
  2. Step 2: Convert to fraction form
    20,390,994.02/28,141,967.90 = 11,451,573.35/x
  3. Step 3: Cross multiply
    20,390,994.02x = 28,141,967.90 × 11,451,573.35
  4. Step 4: Simplify right side
    20,390,994.02x = 322,269,809,422,227.75
  5. Step 5: Solve for x
    x = 322,269,809,422,227.75/20,390,994.02
  6. Step 6: Final answer
    x = 15,804,516.90

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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.