Home / 679,509,053.37-1,019,264,762.38-213,206,262.62

Finding the Fourth Proportional to 679,509,053.37, 1,019,264,762.38 and 213,206,262.62

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Solution

The fourth proportional to 679,509,053.37, 1,019,264,762.38 and 213,206,262.62 is: 319,809,764.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,509,053.37 : 1,019,264,762.38 = 213,206,262.62 : x
  2. Step 2: Convert to fraction form
    679,509,053.37/1,019,264,762.38 = 213,206,262.62/x
  3. Step 3: Cross multiply
    679,509,053.37x = 1,019,264,762.38 × 213,206,262.62
  4. Step 4: Simplify right side
    679,509,053.37x = 217,313,630,607,806,208
  5. Step 5: Solve for x
    x = 217,313,630,607,806,208/679,509,053.37
  6. Step 6: Final answer
    x = 319,809,764.90

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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.