Home / 208,009,852.20-312,014,778.30-147,543,676.20

Finding the Fourth Proportional to 208,009,852.20, 312,014,778.30 and 147,543,676.20

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Solution

The fourth proportional to 208,009,852.20, 312,014,778.30 and 147,543,676.20 is: 221,315,514.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,009,852.20 : 312,014,778.30 = 147,543,676.20 : x
  2. Step 2: Convert to fraction form
    208,009,852.20/312,014,778.30 = 147,543,676.20/x
  3. Step 3: Cross multiply
    208,009,852.20x = 312,014,778.30 × 147,543,676.20
  4. Step 4: Simplify right side
    208,009,852.20x = 46,035,807,419,109,984
  5. Step 5: Solve for x
    x = 46,035,807,419,109,984/208,009,852.20
  6. Step 6: Final answer
    x = 221,315,514.30

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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.