Home / 511,214,051.40-766,821,077.10-448,078,860.60

Finding the Fourth Proportional to 511,214,051.40, 766,821,077.10 and 448,078,860.60

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Solution

The fourth proportional to 511,214,051.40, 766,821,077.10 and 448,078,860.60 is: 672,118,290.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,214,051.40 : 766,821,077.10 = 448,078,860.60 : x
  2. Step 2: Convert to fraction form
    511,214,051.40/766,821,077.10 = 448,078,860.60/x
  3. Step 3: Cross multiply
    511,214,051.40x = 766,821,077.10 × 448,078,860.60
  4. Step 4: Simplify right side
    511,214,051.40x = 343,596,314,511,032,768
  5. Step 5: Solve for x
    x = 343,596,314,511,032,768/511,214,051.40
  6. Step 6: Final answer
    x = 672,118,290.90

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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.