Home / 56,168,539.03-77,511,085.04-31,388,919.12

Finding the Fourth Proportional to 56,168,539.03, 77,511,085.04 and 31,388,919.12

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Solution

The fourth proportional to 56,168,539.03, 77,511,085.04 and 31,388,919.12 is: 43,315,870.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,168,539.03 : 77,511,085.04 = 31,388,919.12 : x
  2. Step 2: Convert to fraction form
    56,168,539.03/77,511,085.04 = 31,388,919.12/x
  3. Step 3: Cross multiply
    56,168,539.03x = 77,511,085.04 × 31,388,919.12
  4. Step 4: Simplify right side
    56,168,539.03x = 2,432,989,179,415,384
  5. Step 5: Solve for x
    x = 2,432,989,179,415,384/56,168,539.03
  6. Step 6: Final answer
    x = 43,315,870.79

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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.