Home / 21,628,681.32-29,847,625.02-11,839,750.86

Finding the Fourth Proportional to 21,628,681.32, 29,847,625.02 and 11,839,750.86

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Solution

The fourth proportional to 21,628,681.32, 29,847,625.02 and 11,839,750.86 is: 16,338,880.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,628,681.32 : 29,847,625.02 = 11,839,750.86 : x
  2. Step 2: Convert to fraction form
    21,628,681.32/29,847,625.02 = 11,839,750.86/x
  3. Step 3: Cross multiply
    21,628,681.32x = 29,847,625.02 × 11,839,750.86
  4. Step 4: Simplify right side
    21,628,681.32x = 353,388,443,999,502.50
  5. Step 5: Solve for x
    x = 353,388,443,999,502.50/21,628,681.32
  6. Step 6: Final answer
    x = 16,338,880.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.