Home / 51,622,407.87-77,433,267.31-20,916,534.21

Finding the Fourth Proportional to 51,622,407.87, 77,433,267.31 and 20,916,534.21

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Solution

The fourth proportional to 51,622,407.87, 77,433,267.31 and 20,916,534.21 is: 31,374,661.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,622,407.87 : 77,433,267.31 = 20,916,534.21 : x
  2. Step 2: Convert to fraction form
    51,622,407.87/77,433,267.31 = 20,916,534.21/x
  3. Step 3: Cross multiply
    51,622,407.87x = 77,433,267.31 × 20,916,534.21
  4. Step 4: Simplify right side
    51,622,407.87x = 1,619,635,584,681,689.75
  5. Step 5: Solve for x
    x = 1,619,635,584,681,689.75/51,622,407.87
  6. Step 6: Final answer
    x = 31,374,661.73

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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.