Home / 266,112,077.40-399,168,116.10-188,627,979.60

Finding the Fourth Proportional to 266,112,077.40, 399,168,116.10 and 188,627,979.60

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Solution

The fourth proportional to 266,112,077.40, 399,168,116.10 and 188,627,979.60 is: 282,941,969.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,112,077.40 : 399,168,116.10 = 188,627,979.60 : x
  2. Step 2: Convert to fraction form
    266,112,077.40/399,168,116.10 = 188,627,979.60/x
  3. Step 3: Cross multiply
    266,112,077.40x = 399,168,116.10 × 188,627,979.60
  4. Step 4: Simplify right side
    266,112,077.40x = 75,294,275,260,681,232
  5. Step 5: Solve for x
    x = 75,294,275,260,681,232/266,112,077.40
  6. Step 6: Final answer
    x = 282,941,969.40

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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.