Home / 20,463,425-28,238,533.62-11,642,045.48

Finding the Fourth Proportional to 20,463,425, 28,238,533.62 and 11,642,045.48

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Solution

The fourth proportional to 20,463,425, 28,238,533.62 and 11,642,045.48 is: 16,065,457.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,463,425 : 28,238,533.62 = 11,642,045.48 : x
  2. Step 2: Convert to fraction form
    20,463,425/28,238,533.62 = 11,642,045.48/x
  3. Step 3: Cross multiply
    20,463,425x = 28,238,533.62 × 11,642,045.48
  4. Step 4: Simplify right side
    20,463,425x = 328,754,292,692,549.06
  5. Step 5: Solve for x
    x = 328,754,292,692,549.06/20,463,425
  6. Step 6: Final answer
    x = 16,065,457.89

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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.