Home / 206,567,663.40-309,851,495.10-70,253,046.90

Finding the Fourth Proportional to 206,567,663.40, 309,851,495.10 and 70,253,046.90

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Solution

The fourth proportional to 206,567,663.40, 309,851,495.10 and 70,253,046.90 is: 105,379,570.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,567,663.40 : 309,851,495.10 = 70,253,046.90 : x
  2. Step 2: Convert to fraction form
    206,567,663.40/309,851,495.10 = 70,253,046.90/x
  3. Step 3: Cross multiply
    206,567,663.40x = 309,851,495.10 × 70,253,046.90
  4. Step 4: Simplify right side
    206,567,663.40x = 21,768,011,617,295,424
  5. Step 5: Solve for x
    x = 21,768,011,617,295,424/206,567,663.40
  6. Step 6: Final answer
    x = 105,379,570.35

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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.