Home / 638,233,980.86-955,387,435.20-416,427,718.20

Finding the Fourth Proportional to 638,233,980.86, 955,387,435.20 and 416,427,718.20

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Solution

The fourth proportional to 638,233,980.86, 955,387,435.20 and 416,427,718.20 is: 623,360,431.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,233,980.86 : 955,387,435.20 = 416,427,718.20 : x
  2. Step 2: Convert to fraction form
    638,233,980.86/955,387,435.20 = 416,427,718.20/x
  3. Step 3: Cross multiply
    638,233,980.86x = 955,387,435.20 × 416,427,718.20
  4. Step 4: Simplify right side
    638,233,980.86x = 397,849,809,637,286,400
  5. Step 5: Solve for x
    x = 397,849,809,637,286,400/638,233,980.86
  6. Step 6: Final answer
    x = 623,360,431.39

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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.