Home / 213,176,168.78-319,794,756.10-65,636,212.23

Finding the Fourth Proportional to 213,176,168.78, 319,794,756.10 and 65,636,212.23

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Solution

The fourth proportional to 213,176,168.78, 319,794,756.10 and 65,636,212.23 is: 98,463,710.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,176,168.78 : 319,794,756.10 = 65,636,212.23 : x
  2. Step 2: Convert to fraction form
    213,176,168.78/319,794,756.10 = 65,636,212.23/x
  3. Step 3: Cross multiply
    213,176,168.78x = 319,794,756.10 × 65,636,212.23
  4. Step 4: Simplify right side
    213,176,168.78x = 20,990,116,481,420,688
  5. Step 5: Solve for x
    x = 20,990,116,481,420,688/213,176,168.78
  6. Step 6: Final answer
    x = 98,463,710.09

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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.