Home / 7,891,334.23-11,828,147.40-5,164,128.82

Finding the Fourth Proportional to 7,891,334.23, 11,828,147.40 and 5,164,128.82

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Solution

The fourth proportional to 7,891,334.23, 11,828,147.40 and 5,164,128.82 is: 7,740,399.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,891,334.23 : 11,828,147.40 = 5,164,128.82 : x
  2. Step 2: Convert to fraction form
    7,891,334.23/11,828,147.40 = 5,164,128.82/x
  3. Step 3: Cross multiply
    7,891,334.23x = 11,828,147.40 × 5,164,128.82
  4. Step 4: Simplify right side
    7,891,334.23x = 61,082,076,875,548.07
  5. Step 5: Solve for x
    x = 61,082,076,875,548.07/7,891,334.23
  6. Step 6: Final answer
    x = 7,740,399.17

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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.