Home / 867,588,991.89-1,301,380,649.46-314,890,683.72

Finding the Fourth Proportional to 867,588,991.89, 1,301,380,649.46 and 314,890,683.72

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Solution

The fourth proportional to 867,588,991.89, 1,301,380,649.46 and 314,890,683.72 is: 472,334,995.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,588,991.89 : 1,301,380,649.46 = 314,890,683.72 : x
  2. Step 2: Convert to fraction form
    867,588,991.89/1,301,380,649.46 = 314,890,683.72/x
  3. Step 3: Cross multiply
    867,588,991.89x = 1,301,380,649.46 × 314,890,683.72
  4. Step 4: Simplify right side
    867,588,991.89x = 409,792,642,488,437,120
  5. Step 5: Solve for x
    x = 409,792,642,488,437,120/867,588,991.89
  6. Step 6: Final answer
    x = 472,334,995.39

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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.