Home / 15,072,495.05-20,804,726.57-11,980,504.88

Finding the Fourth Proportional to 15,072,495.05, 20,804,726.57 and 11,980,504.88

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Solution

The fourth proportional to 15,072,495.05, 20,804,726.57 and 11,980,504.88 is: 16,536,819.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,072,495.05 : 20,804,726.57 = 11,980,504.88 : x
  2. Step 2: Convert to fraction form
    15,072,495.05/20,804,726.57 = 11,980,504.88/x
  3. Step 3: Cross multiply
    15,072,495.05x = 20,804,726.57 × 11,980,504.88
  4. Step 4: Simplify right side
    15,072,495.05x = 249,251,128,035,024.53
  5. Step 5: Solve for x
    x = 249,251,128,035,024.53/15,072,495.05
  6. Step 6: Final answer
    x = 16,536,819.37

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1.5x scale

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.