Home / 37,379,969.40-56,009,592.90-21,157,678.20

Finding the Fourth Proportional to 37,379,969.40, 56,009,592.90 and 21,157,678.20

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Solution

The fourth proportional to 37,379,969.40, 56,009,592.90 and 21,157,678.20 is: 31,702,351.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,379,969.40 : 56,009,592.90 = 21,157,678.20 : x
  2. Step 2: Convert to fraction form
    37,379,969.40/56,009,592.90 = 21,157,678.20/x
  3. Step 3: Cross multiply
    37,379,969.40x = 56,009,592.90 × 21,157,678.20
  4. Step 4: Simplify right side
    37,379,969.40x = 1,185,032,942,691,204.75
  5. Step 5: Solve for x
    x = 1,185,032,942,691,204.75/37,379,969.40
  6. Step 6: Final answer
    x = 31,702,351.87

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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.