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Finding the Fourth Proportional to 529,449,810.80, 794,821,679.40 and 299,578,809.20

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Solution

The fourth proportional to 529,449,810.80, 794,821,679.40 and 299,578,809.20 is: 449,734,285.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,449,810.80 : 794,821,679.40 = 299,578,809.20 : x
  2. Step 2: Convert to fraction form
    529,449,810.80/794,821,679.40 = 299,578,809.20/x
  3. Step 3: Cross multiply
    529,449,810.80x = 794,821,679.40 × 299,578,809.20
  4. Step 4: Simplify right side
    529,449,810.80x = 238,111,732,240,996,160
  5. Step 5: Solve for x
    x = 238,111,732,240,996,160/529,449,810.80
  6. Step 6: Final answer
    x = 449,734,285.26

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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.