Home / 717,572,261.60-1,076,302,405.20-280,788,120.80

Finding the Fourth Proportional to 717,572,261.60, 1,076,302,405.20 and 280,788,120.80

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Solution

The fourth proportional to 717,572,261.60, 1,076,302,405.20 and 280,788,120.80 is: 421,160,273.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,572,261.60 : 1,076,302,405.20 = 280,788,120.80 : x
  2. Step 2: Convert to fraction form
    717,572,261.60/1,076,302,405.20 = 280,788,120.80/x
  3. Step 3: Cross multiply
    717,572,261.60x = 1,076,302,405.20 × 280,788,120.80
  4. Step 4: Simplify right side
    717,572,261.60x = 302,212,929,768,628,160
  5. Step 5: Solve for x
    x = 302,212,929,768,628,160/717,572,261.60
  6. Step 6: Final answer
    x = 421,160,273.25

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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.