Home / 13,999,643.46-21,022,248.20-8,642,349.09

Finding the Fourth Proportional to 13,999,643.46, 21,022,248.20 and 8,642,349.09

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Solution

The fourth proportional to 13,999,643.46, 21,022,248.20 and 8,642,349.09 is: 12,977,588.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,999,643.46 : 21,022,248.20 = 8,642,349.09 : x
  2. Step 2: Convert to fraction form
    13,999,643.46/21,022,248.20 = 8,642,349.09/x
  3. Step 3: Cross multiply
    13,999,643.46x = 21,022,248.20 × 8,642,349.09
  4. Step 4: Simplify right side
    13,999,643.46x = 181,681,607,557,812.41
  5. Step 5: Solve for x
    x = 181,681,607,557,812.41/13,999,643.46
  6. Step 6: Final answer
    x = 12,977,588.18

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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.