Home / 1,200,623,377.14-1,655,544,555.78-782,159,647.86

Finding the Fourth Proportional to 1,200,623,377.14, 1,655,544,555.78 and 782,159,647.86

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Solution

The fourth proportional to 1,200,623,377.14, 1,655,544,555.78 and 782,159,647.86 is: 1,078,523,183.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,623,377.14 : 1,655,544,555.78 = 782,159,647.86 : x
  2. Step 2: Convert to fraction form
    1,200,623,377.14/1,655,544,555.78 = 782,159,647.86/x
  3. Step 3: Cross multiply
    1,200,623,377.14x = 1,655,544,555.78 × 782,159,647.86
  4. Step 4: Simplify right side
    1,200,623,377.14x = 1,294,900,146,765,424,896
  5. Step 5: Solve for x
    x = 1,294,900,146,765,424,896/1,200,623,377.14
  6. Step 6: Final answer
    x = 1,078,523,183.39

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Double scale
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1.5x scale

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.