Home / 40,166,742.76-55,430,670.18-21,832,029.16

Finding the Fourth Proportional to 40,166,742.76, 55,430,670.18 and 21,832,029.16

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Solution

The fourth proportional to 40,166,742.76, 55,430,670.18 and 21,832,029.16 is: 30,128,507.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,166,742.76 : 55,430,670.18 = 21,832,029.16 : x
  2. Step 2: Convert to fraction form
    40,166,742.76/55,430,670.18 = 21,832,029.16/x
  3. Step 3: Cross multiply
    40,166,742.76x = 55,430,670.18 × 21,832,029.16
  4. Step 4: Simplify right side
    40,166,742.76x = 1,210,164,007,728,102.50
  5. Step 5: Solve for x
    x = 1,210,164,007,728,102.50/40,166,742.76
  6. Step 6: Final answer
    x = 30,128,507.43

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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.