Home / 206,588,018.70-309,164,582.70-142,017,937.20

Finding the Fourth Proportional to 206,588,018.70, 309,164,582.70 and 142,017,937.20

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Solution

The fourth proportional to 206,588,018.70, 309,164,582.70 and 142,017,937.20 is: 212,533,701.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,588,018.70 : 309,164,582.70 = 142,017,937.20 : x
  2. Step 2: Convert to fraction form
    206,588,018.70/309,164,582.70 = 142,017,937.20/x
  3. Step 3: Cross multiply
    206,588,018.70x = 309,164,582.70 × 142,017,937.20
  4. Step 4: Simplify right side
    206,588,018.70x = 43,906,916,290,352,800
  5. Step 5: Solve for x
    x = 43,906,916,290,352,800/206,588,018.70
  6. Step 6: Final answer
    x = 212,533,701.45

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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.