Home / 903,901,786.67-1,247,379,452.48-507,424,671.42

Finding the Fourth Proportional to 903,901,786.67, 1,247,379,452.48 and 507,424,671.42

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Solution

The fourth proportional to 903,901,786.67, 1,247,379,452.48 and 507,424,671.42 is: 700,243,232.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,901,786.67 : 1,247,379,452.48 = 507,424,671.42 : x
  2. Step 2: Convert to fraction form
    903,901,786.67/1,247,379,452.48 = 507,424,671.42/x
  3. Step 3: Cross multiply
    903,901,786.67x = 1,247,379,452.48 × 507,424,671.42
  4. Step 4: Simplify right side
    903,901,786.67x = 632,951,108,804,472,832
  5. Step 5: Solve for x
    x = 632,951,108,804,472,832/903,901,786.67
  6. Step 6: Final answer
    x = 700,243,232.33

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Double scale
Find fourth proportional to 903,901,787.67, 1,247,379,453.86 and 507,424,672.42
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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.