Home / 26,014,279.40-38,979,428.70-21,731,258.60

Finding the Fourth Proportional to 26,014,279.40, 38,979,428.70 and 21,731,258.60

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Solution

The fourth proportional to 26,014,279.40, 38,979,428.70 and 21,731,258.60 is: 32,561,810.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,014,279.40 : 38,979,428.70 = 21,731,258.60 : x
  2. Step 2: Convert to fraction form
    26,014,279.40/38,979,428.70 = 21,731,258.60/x
  3. Step 3: Cross multiply
    26,014,279.40x = 38,979,428.70 × 21,731,258.60
  4. Step 4: Simplify right side
    26,014,279.40x = 847,072,045,159,962
  5. Step 5: Solve for x
    x = 847,072,045,159,962/26,014,279.40
  6. Step 6: Final answer
    x = 32,561,810.85

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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.