Home / 260,761,034,461.60-391,141,551,692.40-213,650,702,999.20

Finding the Fourth Proportional to 260,761,034,461.60, 391,141,551,692.40 and 213,650,702,999.20

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Solution

The fourth proportional to 260,761,034,461.60, 391,141,551,692.40 and 213,650,702,999.20 is: 320,476,054,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,761,034,461.60 : 391,141,551,692.40 = 213,650,702,999.20 : x
  2. Step 2: Convert to fraction form
    260,761,034,461.60/391,141,551,692.40 = 213,650,702,999.20/x
  3. Step 3: Cross multiply
    260,761,034,461.60x = 391,141,551,692.40 × 213,650,702,999.20
  4. Step 4: Simplify right side
    260,761,034,461.60x = 83,567,667,491,279,204,253,696
  5. Step 5: Solve for x
    x = 83,567,667,491,279,204,253,696/260,761,034,461.60
  6. Step 6: Final answer
    x = 320,476,054,498.80

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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.