Home / 21,030,156.40-31,545,234.60-9,062,892.40

Finding the Fourth Proportional to 21,030,156.40, 31,545,234.60 and 9,062,892.40

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Solution

The fourth proportional to 21,030,156.40, 31,545,234.60 and 9,062,892.40 is: 13,594,338.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,030,156.40 : 31,545,234.60 = 9,062,892.40 : x
  2. Step 2: Convert to fraction form
    21,030,156.40/31,545,234.60 = 9,062,892.40/x
  3. Step 3: Cross multiply
    21,030,156.40x = 31,545,234.60 × 9,062,892.40
  4. Step 4: Simplify right side
    21,030,156.40x = 285,891,066,912,557.06
  5. Step 5: Solve for x
    x = 285,891,066,912,557.06/21,030,156.40
  6. Step 6: Final answer
    x = 13,594,338.60

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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.