Home / 20,523,683.61-28,320,754.14-13,894,786.98

Finding the Fourth Proportional to 20,523,683.61, 28,320,754.14 and 13,894,786.98

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Solution

The fourth proportional to 20,523,683.61, 28,320,754.14 and 13,894,786.98 is: 19,173,499.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,523,683.61 : 28,320,754.14 = 13,894,786.98 : x
  2. Step 2: Convert to fraction form
    20,523,683.61/28,320,754.14 = 13,894,786.98/x
  3. Step 3: Cross multiply
    20,523,683.61x = 28,320,754.14 × 13,894,786.98
  4. Step 4: Simplify right side
    20,523,683.61x = 393,510,845,888,253.12
  5. Step 5: Solve for x
    x = 393,510,845,888,253.12/20,523,683.61
  6. Step 6: Final answer
    x = 19,173,499.91

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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.