Home / 206,388,045.90-309,582,068.85-190,604,248.20

Finding the Fourth Proportional to 206,388,045.90, 309,582,068.85 and 190,604,248.20

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Solution

The fourth proportional to 206,388,045.90, 309,582,068.85 and 190,604,248.20 is: 285,906,372.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,388,045.90 : 309,582,068.85 = 190,604,248.20 : x
  2. Step 2: Convert to fraction form
    206,388,045.90/309,582,068.85 = 190,604,248.20/x
  3. Step 3: Cross multiply
    206,388,045.90x = 309,582,068.85 × 190,604,248.20
  4. Step 4: Simplify right side
    206,388,045.90x = 59,007,657,489,354,888
  5. Step 5: Solve for x
    x = 59,007,657,489,354,888/206,388,045.90
  6. Step 6: Final answer
    x = 285,906,372.30

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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.