Home / 281,313,241.93-388,207,135.65-155,864,980.36

Finding the Fourth Proportional to 281,313,241.93, 388,207,135.65 and 155,864,980.36

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Solution

The fourth proportional to 281,313,241.93, 388,207,135.65 and 155,864,980.36 is: 215,090,826.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,313,241.93 : 388,207,135.65 = 155,864,980.36 : x
  2. Step 2: Convert to fraction form
    281,313,241.93/388,207,135.65 = 155,864,980.36/x
  3. Step 3: Cross multiply
    281,313,241.93x = 388,207,135.65 × 155,864,980.36
  4. Step 4: Simplify right side
    281,313,241.93x = 60,507,897,573,699,104
  5. Step 5: Solve for x
    x = 60,507,897,573,699,104/281,313,241.93
  6. Step 6: Final answer
    x = 215,090,826.01

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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.