Home / 756,680,700.80-1,135,021,051.20-347,736,851.30

Finding the Fourth Proportional to 756,680,700.80, 1,135,021,051.20 and 347,736,851.30

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Solution

The fourth proportional to 756,680,700.80, 1,135,021,051.20 and 347,736,851.30 is: 521,605,276.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,680,700.80 : 1,135,021,051.20 = 347,736,851.30 : x
  2. Step 2: Convert to fraction form
    756,680,700.80/1,135,021,051.20 = 347,736,851.30/x
  3. Step 3: Cross multiply
    756,680,700.80x = 1,135,021,051.20 × 347,736,851.30
  4. Step 4: Simplify right side
    756,680,700.80x = 394,688,646,503,504,128
  5. Step 5: Solve for x
    x = 394,688,646,503,504,128/756,680,700.80
  6. Step 6: Final answer
    x = 521,605,276.95

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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.