Home / 680,245,054.08-938,768,939.36-382,989,435.63

Finding the Fourth Proportional to 680,245,054.08, 938,768,939.36 and 382,989,435.63

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Solution

The fourth proportional to 680,245,054.08, 938,768,939.36 and 382,989,435.63 is: 528,542,742.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,245,054.08 : 938,768,939.36 = 382,989,435.63 : x
  2. Step 2: Convert to fraction form
    680,245,054.08/938,768,939.36 = 382,989,435.63/x
  3. Step 3: Cross multiply
    680,245,054.08x = 938,768,939.36 × 382,989,435.63
  4. Step 4: Simplify right side
    680,245,054.08x = 359,538,586,272,460,096
  5. Step 5: Solve for x
    x = 359,538,586,272,460,096/680,245,054.08
  6. Step 6: Final answer
    x = 528,542,742.23

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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.