Home / 678,434,279.48-1,017,362,199.04-258,183,939.64

Finding the Fourth Proportional to 678,434,279.48, 1,017,362,199.04 and 258,183,939.64

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Solution

The fourth proportional to 678,434,279.48, 1,017,362,199.04 and 258,183,939.64 is: 387,165,844.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,434,279.48 : 1,017,362,199.04 = 258,183,939.64 : x
  2. Step 2: Convert to fraction form
    678,434,279.48/1,017,362,199.04 = 258,183,939.64/x
  3. Step 3: Cross multiply
    678,434,279.48x = 1,017,362,199.04 × 258,183,939.64
  4. Step 4: Simplify right side
    678,434,279.48x = 262,666,580,588,960,992
  5. Step 5: Solve for x
    x = 262,666,580,588,960,992/678,434,279.48
  6. Step 6: Final answer
    x = 387,165,844.26

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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.