Home / 40,077,048.56-55,306,434.20-21,742,334.08

Finding the Fourth Proportional to 40,077,048.56, 55,306,434.20 and 21,742,334.08

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Solution

The fourth proportional to 40,077,048.56, 55,306,434.20 and 21,742,334.08 is: 30,004,479.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,077,048.56 : 55,306,434.20 = 21,742,334.08 : x
  2. Step 2: Convert to fraction form
    40,077,048.56/55,306,434.20 = 21,742,334.08/x
  3. Step 3: Cross multiply
    40,077,048.56x = 55,306,434.20 × 21,742,334.08
  4. Step 4: Simplify right side
    40,077,048.56x = 1,202,490,969,149,937.50
  5. Step 5: Solve for x
    x = 1,202,490,969,149,937.50/40,077,048.56
  6. Step 6: Final answer
    x = 30,004,479.18

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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.