Home / 421,848,038.40-632,772,057.60-179,479,449.60

Finding the Fourth Proportional to 421,848,038.40, 632,772,057.60 and 179,479,449.60

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Solution

The fourth proportional to 421,848,038.40, 632,772,057.60 and 179,479,449.60 is: 269,219,174.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,848,038.40 : 632,772,057.60 = 179,479,449.60 : x
  2. Step 2: Convert to fraction form
    421,848,038.40/632,772,057.60 = 179,479,449.60/x
  3. Step 3: Cross multiply
    421,848,038.40x = 632,772,057.60 × 179,479,449.60
  4. Step 4: Simplify right side
    421,848,038.40x = 113,569,580,620,307,504
  5. Step 5: Solve for x
    x = 113,569,580,620,307,504/421,848,038.40
  6. Step 6: Final answer
    x = 269,219,174.40

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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.