Home / 20,042,139.16-30,066,953.80-9,113,131.36

Finding the Fourth Proportional to 20,042,139.16, 30,066,953.80 and 9,113,131.36

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Solution

The fourth proportional to 20,042,139.16, 30,066,953.80 and 9,113,131.36 is: 13,671,399.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,042,139.16 : 30,066,953.80 = 9,113,131.36 : x
  2. Step 2: Convert to fraction form
    20,042,139.16/30,066,953.80 = 9,113,131.36/x
  3. Step 3: Cross multiply
    20,042,139.16x = 30,066,953.80 × 9,113,131.36
  4. Step 4: Simplify right side
    20,042,139.16x = 274,004,099,574,451.16
  5. Step 5: Solve for x
    x = 274,004,099,574,451.16/20,042,139.16
  6. Step 6: Final answer
    x = 13,671,399.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.