Home / 21,321,643.54-31,898,315.01-16,149,153.32

Finding the Fourth Proportional to 21,321,643.54, 31,898,315.01 and 16,149,153.32

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Solution

The fourth proportional to 21,321,643.54, 31,898,315.01 and 16,149,153.32 is: 24,159,993.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,321,643.54 : 31,898,315.01 = 16,149,153.32 : x
  2. Step 2: Convert to fraction form
    21,321,643.54/31,898,315.01 = 16,149,153.32/x
  3. Step 3: Cross multiply
    21,321,643.54x = 31,898,315.01 × 16,149,153.32
  4. Step 4: Simplify right side
    21,321,643.54x = 515,130,779,586,655.75
  5. Step 5: Solve for x
    x = 515,130,779,586,655.75/21,321,643.54
  6. Step 6: Final answer
    x = 24,159,993.99

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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.