Home / 20,747,307.94-28,628,643.45-11,580,337.06

Finding the Fourth Proportional to 20,747,307.94, 28,628,643.45 and 11,580,337.06

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Solution

The fourth proportional to 20,747,307.94, 28,628,643.45 and 11,580,337.06 is: 15,979,390.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747,307.94 : 28,628,643.45 = 11,580,337.06 : x
  2. Step 2: Convert to fraction form
    20,747,307.94/28,628,643.45 = 11,580,337.06/x
  3. Step 3: Cross multiply
    20,747,307.94x = 28,628,643.45 × 11,580,337.06
  4. Step 4: Simplify right side
    20,747,307.94x = 331,529,340,721,561.25
  5. Step 5: Solve for x
    x = 331,529,340,721,561.25/20,747,307.94
  6. Step 6: Final answer
    x = 15,979,390.76

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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.