Home / 772,415,998.80-1,158,623,998.20-190,145,619.60

Finding the Fourth Proportional to 772,415,998.80, 1,158,623,998.20 and 190,145,619.60

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Solution

The fourth proportional to 772,415,998.80, 1,158,623,998.20 and 190,145,619.60 is: 285,218,429.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,415,998.80 : 1,158,623,998.20 = 190,145,619.60 : x
  2. Step 2: Convert to fraction form
    772,415,998.80/1,158,623,998.20 = 190,145,619.60/x
  3. Step 3: Cross multiply
    772,415,998.80x = 1,158,623,998.20 × 190,145,619.60
  4. Step 4: Simplify right side
    772,415,998.80x = 220,307,278,021,168,288
  5. Step 5: Solve for x
    x = 220,307,278,021,168,288/772,415,998.80
  6. Step 6: Final answer
    x = 285,218,429.40

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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.