Home / 28,129,760.51-42,201,004.13-8,961,609.47

Finding the Fourth Proportional to 28,129,760.51, 42,201,004.13 and 8,961,609.47

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Solution

The fourth proportional to 28,129,760.51, 42,201,004.13 and 8,961,609.47 is: 13,444,441.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,129,760.51 : 42,201,004.13 = 8,961,609.47 : x
  2. Step 2: Convert to fraction form
    28,129,760.51/42,201,004.13 = 8,961,609.47/x
  3. Step 3: Cross multiply
    28,129,760.51x = 42,201,004.13 × 8,961,609.47
  4. Step 4: Simplify right side
    28,129,760.51x = 378,188,918,210,109.06
  5. Step 5: Solve for x
    x = 378,188,918,210,109.06/28,129,760.51
  6. Step 6: Final answer
    x = 13,444,441.45

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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.