Home / 929,100,624.30-1,393,650,936.45-515,852,102.70

Finding the Fourth Proportional to 929,100,624.30, 1,393,650,936.45 and 515,852,102.70

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Solution

The fourth proportional to 929,100,624.30, 1,393,650,936.45 and 515,852,102.70 is: 773,778,154.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,100,624.30 : 1,393,650,936.45 = 515,852,102.70 : x
  2. Step 2: Convert to fraction form
    929,100,624.30/1,393,650,936.45 = 515,852,102.70/x
  3. Step 3: Cross multiply
    929,100,624.30x = 1,393,650,936.45 × 515,852,102.70
  4. Step 4: Simplify right side
    929,100,624.30x = 718,917,765,997,556,608
  5. Step 5: Solve for x
    x = 718,917,765,997,556,608/929,100,624.30
  6. Step 6: Final answer
    x = 773,778,154.05

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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.