Home / 425,713,743.80-638,570,615.70-263,630,108.60

Finding the Fourth Proportional to 425,713,743.80, 638,570,615.70 and 263,630,108.60

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Solution

The fourth proportional to 425,713,743.80, 638,570,615.70 and 263,630,108.60 is: 395,445,162.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,713,743.80 : 638,570,615.70 = 263,630,108.60 : x
  2. Step 2: Convert to fraction form
    425,713,743.80/638,570,615.70 = 263,630,108.60/x
  3. Step 3: Cross multiply
    425,713,743.80x = 638,570,615.70 × 263,630,108.60
  4. Step 4: Simplify right side
    425,713,743.80x = 168,346,440,765,759,872
  5. Step 5: Solve for x
    x = 168,346,440,765,759,872/425,713,743.80
  6. Step 6: Final answer
    x = 395,445,162.90

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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.