Home / 290,416,555.52-435,623,255.04-167,515,205.12

Finding the Fourth Proportional to 290,416,555.52, 435,623,255.04 and 167,515,205.12

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Solution

The fourth proportional to 290,416,555.52, 435,623,255.04 and 167,515,205.12 is: 251,271,897.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,416,555.52 : 435,623,255.04 = 167,515,205.12 : x
  2. Step 2: Convert to fraction form
    290,416,555.52/435,623,255.04 = 167,515,205.12/x
  3. Step 3: Cross multiply
    290,416,555.52x = 435,623,255.04 × 167,515,205.12
  4. Step 4: Simplify right side
    290,416,555.52x = 72,973,518,923,067,680
  5. Step 5: Solve for x
    x = 72,973,518,923,067,680/290,416,555.52
  6. Step 6: Final answer
    x = 251,271,897.34

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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.