Home / 281,418,873.39-388,358,082.63-155,979,159.09

Finding the Fourth Proportional to 281,418,873.39, 388,358,082.63 and 155,979,159.09

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Solution

The fourth proportional to 281,418,873.39, 388,358,082.63 and 155,979,159.09 is: 215,251,260.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,418,873.39 : 388,358,082.63 = 155,979,159.09 : x
  2. Step 2: Convert to fraction form
    281,418,873.39/388,358,082.63 = 155,979,159.09/x
  3. Step 3: Cross multiply
    281,418,873.39x = 388,358,082.63 × 155,979,159.09
  4. Step 4: Simplify right side
    281,418,873.39x = 60,575,767,154,432,136
  5. Step 5: Solve for x
    x = 60,575,767,154,432,136/281,418,873.39
  6. Step 6: Final answer
    x = 215,251,260.25

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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.