Home / 40,077,039.56-55,306,421.78-21,742,325.06

Finding the Fourth Proportional to 40,077,039.56, 55,306,421.78 and 21,742,325.06

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Solution

The fourth proportional to 40,077,039.56, 55,306,421.78 and 21,742,325.06 is: 30,004,466.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,077,039.56 : 55,306,421.78 = 21,742,325.06 : x
  2. Step 2: Convert to fraction form
    40,077,039.56/55,306,421.78 = 21,742,325.06/x
  3. Step 3: Cross multiply
    40,077,039.56x = 55,306,421.78 × 21,742,325.06
  4. Step 4: Simplify right side
    40,077,039.56x = 1,202,490,199,860,980
  5. Step 5: Solve for x
    x = 1,202,490,199,860,980/40,077,039.56
  6. Step 6: Final answer
    x = 30,004,466.73

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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.