Home / 40,077,041.05-55,306,423.85-21,742,326.55

Finding the Fourth Proportional to 40,077,041.05, 55,306,423.85 and 21,742,326.55

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Solution

The fourth proportional to 40,077,041.05, 55,306,423.85 and 21,742,326.55 is: 30,004,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,077,041.05 : 55,306,423.85 = 21,742,326.55 : x
  2. Step 2: Convert to fraction form
    40,077,041.05/55,306,423.85 = 21,742,326.55/x
  3. Step 3: Cross multiply
    40,077,041.05x = 55,306,423.85 × 21,742,326.55
  4. Step 4: Simplify right side
    40,077,041.05x = 1,202,490,327,659,408.25
  5. Step 5: Solve for x
    x = 1,202,490,327,659,408.25/40,077,041.05
  6. Step 6: Final answer
    x = 30,004,468.80

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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.