Home / 315,218,259.20-472,827,388.84-194,285,907.20

Finding the Fourth Proportional to 315,218,259.20, 472,827,388.84 and 194,285,907.20

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Solution

The fourth proportional to 315,218,259.20, 472,827,388.84 and 194,285,907.20 is: 291,428,860.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,218,259.20 : 472,827,388.84 = 194,285,907.20 : x
  2. Step 2: Convert to fraction form
    315,218,259.20/472,827,388.84 = 194,285,907.20/x
  3. Step 3: Cross multiply
    315,218,259.20x = 472,827,388.84 × 194,285,907.20
  4. Step 4: Simplify right side
    315,218,259.20x = 91,863,698,189,786,544
  5. Step 5: Solve for x
    x = 91,863,698,189,786,544/315,218,259.20
  6. Step 6: Final answer
    x = 291,428,860.82

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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.