Home / 40,077,047.43-55,306,432.65-21,742,332.93

Finding the Fourth Proportional to 40,077,047.43, 55,306,432.65 and 21,742,332.93

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Solution

The fourth proportional to 40,077,047.43, 55,306,432.65 and 21,742,332.93 is: 30,004,477.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,077,047.43 : 55,306,432.65 = 21,742,332.93 : x
  2. Step 2: Convert to fraction form
    40,077,047.43/55,306,432.65 = 21,742,332.93/x
  3. Step 3: Cross multiply
    40,077,047.43x = 55,306,432.65 × 21,742,332.93
  4. Step 4: Simplify right side
    40,077,047.43x = 1,202,490,871,846,922
  5. Step 5: Solve for x
    x = 1,202,490,871,846,922/40,077,047.43
  6. Step 6: Final answer
    x = 30,004,477.60

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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.