Home / 21,059,375.76-31,590,991.38-5,913,205.20

Finding the Fourth Proportional to 21,059,375.76, 31,590,991.38 and 5,913,205.20

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Solution

The fourth proportional to 21,059,375.76, 31,590,991.38 and 5,913,205.20 is: 8,870,349.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,059,375.76 : 31,590,991.38 = 5,913,205.20 : x
  2. Step 2: Convert to fraction form
    21,059,375.76/31,590,991.38 = 5,913,205.20/x
  3. Step 3: Cross multiply
    21,059,375.76x = 31,590,991.38 × 5,913,205.20
  4. Step 4: Simplify right side
    21,059,375.76x = 186,804,014,501,371.19
  5. Step 5: Solve for x
    x = 186,804,014,501,371.19/21,059,375.76
  6. Step 6: Final answer
    x = 8,870,349.08

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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.