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Finding the Fourth Proportional to 581,520,304.80, 871,539,490.80 and 309,021,616.80

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Solution

The fourth proportional to 581,520,304.80, 871,539,490.80 and 309,021,616.80 is: 463,138,673.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,520,304.80 : 871,539,490.80 = 309,021,616.80 : x
  2. Step 2: Convert to fraction form
    581,520,304.80/871,539,490.80 = 309,021,616.80/x
  3. Step 3: Cross multiply
    581,520,304.80x = 871,539,490.80 × 309,021,616.80
  4. Step 4: Simplify right side
    581,520,304.80x = 269,324,542,552,064,736
  5. Step 5: Solve for x
    x = 269,324,542,552,064,736/581,520,304.80
  6. Step 6: Final answer
    x = 463,138,673.45

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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.