Home / 20,691,783.35-31,037,675.03-9,903,531.05

Finding the Fourth Proportional to 20,691,783.35, 31,037,675.03 and 9,903,531.05

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Solution

The fourth proportional to 20,691,783.35, 31,037,675.03 and 9,903,531.05 is: 14,855,296.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,691,783.35 : 31,037,675.03 = 9,903,531.05 : x
  2. Step 2: Convert to fraction form
    20,691,783.35/31,037,675.03 = 9,903,531.05/x
  3. Step 3: Cross multiply
    20,691,783.35x = 31,037,675.03 × 9,903,531.05
  4. Step 4: Simplify right side
    20,691,783.35x = 307,382,578,329,897.06
  5. Step 5: Solve for x
    x = 307,382,578,329,897.06/20,691,783.35
  6. Step 6: Final answer
    x = 14,855,296.58

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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.