Home / 317,640,317.22-438,356,816.13-176,511,010.50

Finding the Fourth Proportional to 317,640,317.22, 438,356,816.13 and 176,511,010.50

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Solution

The fourth proportional to 317,640,317.22, 438,356,816.13 and 176,511,010.50 is: 243,592,517.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,640,317.22 : 438,356,816.13 = 176,511,010.50 : x
  2. Step 2: Convert to fraction form
    317,640,317.22/438,356,816.13 = 176,511,010.50/x
  3. Step 3: Cross multiply
    317,640,317.22x = 438,356,816.13 × 176,511,010.50
  4. Step 4: Simplify right side
    317,640,317.22x = 77,374,804,574,668,992
  5. Step 5: Solve for x
    x = 77,374,804,574,668,992/317,640,317.22
  6. Step 6: Final answer
    x = 243,592,517.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.