Home / 768,056,669.33-1,059,918,205.01-415,632,659.87

Finding the Fourth Proportional to 768,056,669.33, 1,059,918,205.01 and 415,632,659.87

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Solution

The fourth proportional to 768,056,669.33, 1,059,918,205.01 and 415,632,659.87 is: 573,573,071.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,056,669.33 : 1,059,918,205.01 = 415,632,659.87 : x
  2. Step 2: Convert to fraction form
    768,056,669.33/1,059,918,205.01 = 415,632,659.87/x
  3. Step 3: Cross multiply
    768,056,669.33x = 1,059,918,205.01 × 415,632,659.87
  4. Step 4: Simplify right side
    768,056,669.33x = 440,536,622,793,513,920
  5. Step 5: Solve for x
    x = 440,536,622,793,513,920/768,056,669.33
  6. Step 6: Final answer
    x = 573,573,071.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.