Home / 919,641,486.65-1,380,071,487.06-505,407,584.66

Finding the Fourth Proportional to 919,641,486.65, 1,380,071,487.06 and 505,407,584.66

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Solution

The fourth proportional to 919,641,486.65, 1,380,071,487.06 and 505,407,584.66 is: 758,446,206.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,641,486.65 : 1,380,071,487.06 = 505,407,584.66 : x
  2. Step 2: Convert to fraction form
    919,641,486.65/1,380,071,487.06 = 505,407,584.66/x
  3. Step 3: Cross multiply
    919,641,486.65x = 1,380,071,487.06 × 505,407,584.66
  4. Step 4: Simplify right side
    919,641,486.65x = 697,498,596,926,228,608
  5. Step 5: Solve for x
    x = 697,498,596,926,228,608/919,641,486.65
  6. Step 6: Final answer
    x = 758,446,206.54

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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.