Home / 222,346,853.12-306,838,686.40-123,233,999.42

Finding the Fourth Proportional to 222,346,853.12, 306,838,686.40 and 123,233,999.42

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Solution

The fourth proportional to 222,346,853.12, 306,838,686.40 and 123,233,999.42 is: 170,062,935.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,346,853.12 : 306,838,686.40 = 123,233,999.42 : x
  2. Step 2: Convert to fraction form
    222,346,853.12/306,838,686.40 = 123,233,999.42/x
  3. Step 3: Cross multiply
    222,346,853.12x = 306,838,686.40 × 123,233,999.42
  4. Step 4: Simplify right side
    222,346,853.12x = 37,812,958,501,851,160
  5. Step 5: Solve for x
    x = 37,812,958,501,851,160/222,346,853.12
  6. Step 6: Final answer
    x = 170,062,935.32

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1.5x scale

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.