Home / 312,205,795,019.40-467,978,169,165.23-105,015,695,931.64

Finding the Fourth Proportional to 312,205,795,019.40, 467,978,169,165.23 and 105,015,695,931.64

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Solution

The fourth proportional to 312,205,795,019.40, 467,978,169,165.23 and 105,015,695,931.64 is: 157,412,366,777.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,205,795,019.40 : 467,978,169,165.23 = 105,015,695,931.64 : x
  2. Step 2: Convert to fraction form
    312,205,795,019.40/467,978,169,165.23 = 105,015,695,931.64/x
  3. Step 3: Cross multiply
    312,205,795,019.40x = 467,978,169,165.23 × 105,015,695,931.64
  4. Step 4: Simplify right side
    312,205,795,019.40x = 49,145,053,115,701,379,727,360
  5. Step 5: Solve for x
    x = 49,145,053,115,701,379,727,360/312,205,795,019.40
  6. Step 6: Final answer
    x = 157,412,366,777.65

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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.