Home / 21,123,509.84-31,685,265.64-11,533,657.44

Finding the Fourth Proportional to 21,123,509.84, 31,685,265.64 and 11,533,657.44

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Solution

The fourth proportional to 21,123,509.84, 31,685,265.64 and 11,533,657.44 is: 17,300,486.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,123,509.84 : 31,685,265.64 = 11,533,657.44 : x
  2. Step 2: Convert to fraction form
    21,123,509.84/31,685,265.64 = 11,533,657.44/x
  3. Step 3: Cross multiply
    21,123,509.84x = 31,685,265.64 × 11,533,657.44
  4. Step 4: Simplify right side
    21,123,509.84x = 365,446,999,787,162.38
  5. Step 5: Solve for x
    x = 365,446,999,787,162.38/21,123,509.84
  6. Step 6: Final answer
    x = 17,300,486.64

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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.