Home / 380,991,543.40-525,650,499.84-222,109,203.03

Finding the Fourth Proportional to 380,991,543.40, 525,650,499.84 and 222,109,203.03

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Solution

The fourth proportional to 380,991,543.40, 525,650,499.84 and 222,109,203.03 is: 306,442,008.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,991,543.40 : 525,650,499.84 = 222,109,203.03 : x
  2. Step 2: Convert to fraction form
    380,991,543.40/525,650,499.84 = 222,109,203.03/x
  3. Step 3: Cross multiply
    380,991,543.40x = 525,650,499.84 × 222,109,203.03
  4. Step 4: Simplify right side
    380,991,543.40x = 116,751,813,590,645,264
  5. Step 5: Solve for x
    x = 116,751,813,590,645,264/380,991,543.40
  6. Step 6: Final answer
    x = 306,442,008.00

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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.