Home / 260,761,248,086.40-391,141,872,129.60-171,499,567,420.80

Finding the Fourth Proportional to 260,761,248,086.40, 391,141,872,129.60 and 171,499,567,420.80

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Solution

The fourth proportional to 260,761,248,086.40, 391,141,872,129.60 and 171,499,567,420.80 is: 257,249,351,131.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,761,248,086.40 : 391,141,872,129.60 = 171,499,567,420.80 : x
  2. Step 2: Convert to fraction form
    260,761,248,086.40/391,141,872,129.60 = 171,499,567,420.80/x
  3. Step 3: Cross multiply
    260,761,248,086.40x = 391,141,872,129.60 × 171,499,567,420.80
  4. Step 4: Simplify right side
    260,761,248,086.40x = 67,080,661,870,388,256,440,320
  5. Step 5: Solve for x
    x = 67,080,661,870,388,256,440,320/260,761,248,086.40
  6. Step 6: Final answer
    x = 257,249,351,131.20

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Double scale
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1.5x scale

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.