Home / 20,837,101-31,243,536.45-7,884,250.63

Finding the Fourth Proportional to 20,837,101, 31,243,536.45 and 7,884,250.63

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Solution

The fourth proportional to 20,837,101, 31,243,536.45 and 7,884,250.63 is: 11,821,791.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,837,101 : 31,243,536.45 = 7,884,250.63 : x
  2. Step 2: Convert to fraction form
    20,837,101/31,243,536.45 = 7,884,250.63/x
  3. Step 3: Cross multiply
    20,837,101x = 31,243,536.45 × 7,884,250.63
  4. Step 4: Simplify right side
    20,837,101x = 246,331,871,939,340.47
  5. Step 5: Solve for x
    x = 246,331,871,939,340.47/20,837,101
  6. Step 6: Final answer
    x = 11,821,791.91

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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.