Home / 383,458,013.60-575,187,020.40-261,014,007.20

Finding the Fourth Proportional to 383,458,013.60, 575,187,020.40 and 261,014,007.20

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Solution

The fourth proportional to 383,458,013.60, 575,187,020.40 and 261,014,007.20 is: 391,521,010.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,458,013.60 : 575,187,020.40 = 261,014,007.20 : x
  2. Step 2: Convert to fraction form
    383,458,013.60/575,187,020.40 = 261,014,007.20/x
  3. Step 3: Cross multiply
    383,458,013.60x = 575,187,020.40 × 261,014,007.20
  4. Step 4: Simplify right side
    383,458,013.60x = 150,131,869,084,032,128
  5. Step 5: Solve for x
    x = 150,131,869,084,032,128/383,458,013.60
  6. Step 6: Final answer
    x = 391,521,010.80

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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.