Home / 878,622,590.37-1,212,517,693.53-482,142,111.24

Finding the Fourth Proportional to 878,622,590.37, 1,212,517,693.53 and 482,142,111.24

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Solution

The fourth proportional to 878,622,590.37, 1,212,517,693.53 and 482,142,111.24 is: 665,366,275.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,622,590.37 : 1,212,517,693.53 = 482,142,111.24 : x
  2. Step 2: Convert to fraction form
    878,622,590.37/1,212,517,693.53 = 482,142,111.24/x
  3. Step 3: Cross multiply
    878,622,590.37x = 1,212,517,693.53 × 482,142,111.24
  4. Step 4: Simplify right side
    878,622,590.37x = 584,605,840,674,409,472
  5. Step 5: Solve for x
    x = 584,605,840,674,409,472/878,622,590.37
  6. Step 6: Final answer
    x = 665,366,275.67

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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.