Home / 790,768,809.51-1,186,140,010.86-192,512,970.56

Finding the Fourth Proportional to 790,768,809.51, 1,186,140,010.86 and 192,512,970.56

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Solution

The fourth proportional to 790,768,809.51, 1,186,140,010.86 and 192,512,970.56 is: 288,766,241.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,768,809.51 : 1,186,140,010.86 = 192,512,970.56 : x
  2. Step 2: Convert to fraction form
    790,768,809.51/1,186,140,010.86 = 192,512,970.56/x
  3. Step 3: Cross multiply
    790,768,809.51x = 1,186,140,010.86 × 192,512,970.56
  4. Step 4: Simplify right side
    790,768,809.51x = 228,347,336,984,798,560
  5. Step 5: Solve for x
    x = 228,347,336,984,798,560/790,768,809.51
  6. Step 6: Final answer
    x = 288,766,241.46

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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.