Home / 291,226,456.30-436,839,684.45-138,171,448.30

Finding the Fourth Proportional to 291,226,456.30, 436,839,684.45 and 138,171,448.30

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Solution

The fourth proportional to 291,226,456.30, 436,839,684.45 and 138,171,448.30 is: 207,257,172.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,226,456.30 : 436,839,684.45 = 138,171,448.30 : x
  2. Step 2: Convert to fraction form
    291,226,456.30/436,839,684.45 = 138,171,448.30/x
  3. Step 3: Cross multiply
    291,226,456.30x = 436,839,684.45 × 138,171,448.30
  4. Step 4: Simplify right side
    291,226,456.30x = 60,358,771,875,371,496
  5. Step 5: Solve for x
    x = 60,358,771,875,371,496/291,226,456.30
  6. Step 6: Final answer
    x = 207,257,172.45

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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.