Home / 213,126,021.80-298,678,761.40-213,126,021.80

Finding the Fourth Proportional to 213,126,021.80, 298,678,761.40 and 213,126,021.80

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Solution

The fourth proportional to 213,126,021.80, 298,678,761.40 and 213,126,021.80 is: 298,678,761.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,126,021.80 : 298,678,761.40 = 213,126,021.80 : x
  2. Step 2: Convert to fraction form
    213,126,021.80/298,678,761.40 = 213,126,021.80/x
  3. Step 3: Cross multiply
    213,126,021.80x = 298,678,761.40 × 213,126,021.80
  4. Step 4: Simplify right side
    213,126,021.80x = 63,656,216,213,333,400
  5. Step 5: Solve for x
    x = 63,656,216,213,333,400/213,126,021.80
  6. Step 6: Final answer
    x = 298,678,761.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.