Home / 1,091,200,440.78-1,505,857,211.17-589,409,221.52

Finding the Fourth Proportional to 1,091,200,440.78, 1,505,857,211.17 and 589,409,221.52

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Solution

The fourth proportional to 1,091,200,440.78, 1,505,857,211.17 and 589,409,221.52 is: 813,385,051.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,200,440.78 : 1,505,857,211.17 = 589,409,221.52 : x
  2. Step 2: Convert to fraction form
    1,091,200,440.78/1,505,857,211.17 = 589,409,221.52/x
  3. Step 3: Cross multiply
    1,091,200,440.78x = 1,505,857,211.17 × 589,409,221.52
  4. Step 4: Simplify right side
    1,091,200,440.78x = 887,566,126,558,279,168
  5. Step 5: Solve for x
    x = 887,566,126,558,279,168/1,091,200,440.78
  6. Step 6: Final answer
    x = 813,385,051.35

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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.