Home / 40,166,745.76-55,430,674.32-21,832,032.16

Finding the Fourth Proportional to 40,166,745.76, 55,430,674.32 and 21,832,032.16

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Solution

The fourth proportional to 40,166,745.76, 55,430,674.32 and 21,832,032.16 is: 30,128,511.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,166,745.76 : 55,430,674.32 = 21,832,032.16 : x
  2. Step 2: Convert to fraction form
    40,166,745.76/55,430,674.32 = 21,832,032.16/x
  3. Step 3: Cross multiply
    40,166,745.76x = 55,430,674.32 × 21,832,032.16
  4. Step 4: Simplify right side
    40,166,745.76x = 1,210,164,264,404,726.25
  5. Step 5: Solve for x
    x = 1,210,164,264,404,726.25/40,166,745.76
  6. Step 6: Final answer
    x = 30,128,511.57

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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.