Home / 620,881,162.20-856,599,633.36-397,985,752.44

Finding the Fourth Proportional to 620,881,162.20, 856,599,633.36 and 397,985,752.44

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Solution

The fourth proportional to 620,881,162.20, 856,599,633.36 and 397,985,752.44 is: 549,081,644.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,881,162.20 : 856,599,633.36 = 397,985,752.44 : x
  2. Step 2: Convert to fraction form
    620,881,162.20/856,599,633.36 = 397,985,752.44/x
  3. Step 3: Cross multiply
    620,881,162.20x = 856,599,633.36 × 397,985,752.44
  4. Step 4: Simplify right side
    620,881,162.20x = 340,914,449,622,607,744
  5. Step 5: Solve for x
    x = 340,914,449,622,607,744/620,881,162.20
  6. Step 6: Final answer
    x = 549,081,644.57

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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.