Home / 980,659,494.72-1,353,319,349.76-540,642,093.12

Finding the Fourth Proportional to 980,659,494.72, 1,353,319,349.76 and 540,642,093.12

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Solution

The fourth proportional to 980,659,494.72, 1,353,319,349.76 and 540,642,093.12 is: 746,091,186.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,659,494.72 : 1,353,319,349.76 = 540,642,093.12 : x
  2. Step 2: Convert to fraction form
    980,659,494.72/1,353,319,349.76 = 540,642,093.12/x
  3. Step 3: Cross multiply
    980,659,494.72x = 1,353,319,349.76 × 540,642,093.12
  4. Step 4: Simplify right side
    980,659,494.72x = 731,661,405,914,043,776
  5. Step 5: Solve for x
    x = 731,661,405,914,043,776/980,659,494.72
  6. Step 6: Final answer
    x = 746,091,186.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.