Home / 20,817,932.84-28,730,894.28-11,997,693.80

Finding the Fourth Proportional to 20,817,932.84, 28,730,894.28 and 11,997,693.80

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Solution

The fourth proportional to 20,817,932.84, 28,730,894.28 and 11,997,693.80 is: 16,558,054.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,817,932.84 : 28,730,894.28 = 11,997,693.80 : x
  2. Step 2: Convert to fraction form
    20,817,932.84/28,730,894.28 = 11,997,693.80/x
  3. Step 3: Cross multiply
    20,817,932.84x = 28,730,894.28 × 11,997,693.80
  4. Step 4: Simplify right side
    20,817,932.84x = 344,704,472,171,611.50
  5. Step 5: Solve for x
    x = 344,704,472,171,611.50/20,817,932.84
  6. Step 6: Final answer
    x = 16,558,054.77

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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.