Home / 1,118,346,305.86-1,677,761,608.93-428,253,584.43

Finding the Fourth Proportional to 1,118,346,305.86, 1,677,761,608.93 and 428,253,584.43

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Solution

The fourth proportional to 1,118,346,305.86, 1,677,761,608.93 and 428,253,584.43 is: 642,473,104.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,346,305.86 : 1,677,761,608.93 = 428,253,584.43 : x
  2. Step 2: Convert to fraction form
    1,118,346,305.86/1,677,761,608.93 = 428,253,584.43/x
  3. Step 3: Cross multiply
    1,118,346,305.86x = 1,677,761,608.93 × 428,253,584.43
  4. Step 4: Simplify right side
    1,118,346,305.86x = 718,507,422,843,316,480
  5. Step 5: Solve for x
    x = 718,507,422,843,316,480/1,118,346,305.86
  6. Step 6: Final answer
    x = 642,473,104.33

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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.