Home / 422,189,701.34-633,570,656.93-173,239,965.47

Finding the Fourth Proportional to 422,189,701.34, 633,570,656.93 and 173,239,965.47

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Solution

The fourth proportional to 422,189,701.34, 633,570,656.93 and 173,239,965.47 is: 259,977,347.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,189,701.34 : 633,570,656.93 = 173,239,965.47 : x
  2. Step 2: Convert to fraction form
    422,189,701.34/633,570,656.93 = 173,239,965.47/x
  3. Step 3: Cross multiply
    422,189,701.34x = 633,570,656.93 × 173,239,965.47
  4. Step 4: Simplify right side
    422,189,701.34x = 109,759,758,730,725,792
  5. Step 5: Solve for x
    x = 109,759,758,730,725,792/422,189,701.34
  6. Step 6: Final answer
    x = 259,977,347.58

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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.