Home / 21,306,144.30-31,959,216.45-9,362,208.30

Finding the Fourth Proportional to 21,306,144.30, 31,959,216.45 and 9,362,208.30

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Solution

The fourth proportional to 21,306,144.30, 31,959,216.45 and 9,362,208.30 is: 14,043,312.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,306,144.30 : 31,959,216.45 = 9,362,208.30 : x
  2. Step 2: Convert to fraction form
    21,306,144.30/31,959,216.45 = 9,362,208.30/x
  3. Step 3: Cross multiply
    21,306,144.30x = 31,959,216.45 × 9,362,208.30
  4. Step 4: Simplify right side
    21,306,144.30x = 299,208,841,509,686.56
  5. Step 5: Solve for x
    x = 299,208,841,509,686.56/21,306,144.30
  6. Step 6: Final answer
    x = 14,043,312.45

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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.