Home / 5,130,731.80-7,691,286.30-1,938,003.40

Finding the Fourth Proportional to 5,130,731.80, 7,691,286.30 and 1,938,003.40

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Solution

The fourth proportional to 5,130,731.80, 7,691,286.30 and 1,938,003.40 is: 2,905,187.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130,731.80 : 7,691,286.30 = 1,938,003.40 : x
  2. Step 2: Convert to fraction form
    5,130,731.80/7,691,286.30 = 1,938,003.40/x
  3. Step 3: Cross multiply
    5,130,731.80x = 7,691,286.30 × 1,938,003.40
  4. Step 4: Simplify right side
    5,130,731.80x = 14,905,738,999,773.42
  5. Step 5: Solve for x
    x = 14,905,738,999,773.42/5,130,731.80
  6. Step 6: Final answer
    x = 2,905,187.72

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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.