Home / 258,990,590.40-388,485,885.60-201,169,809.60

Finding the Fourth Proportional to 258,990,590.40, 388,485,885.60 and 201,169,809.60

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Solution

The fourth proportional to 258,990,590.40, 388,485,885.60 and 201,169,809.60 is: 301,754,714.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,990,590.40 : 388,485,885.60 = 201,169,809.60 : x
  2. Step 2: Convert to fraction form
    258,990,590.40/388,485,885.60 = 201,169,809.60/x
  3. Step 3: Cross multiply
    258,990,590.40x = 388,485,885.60 × 201,169,809.60
  4. Step 4: Simplify right side
    258,990,590.40x = 78,151,631,638,439,392
  5. Step 5: Solve for x
    x = 78,151,631,638,439,392/258,990,590.40
  6. Step 6: Final answer
    x = 301,754,714.40

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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.