Home / 208,456,852.72-312,481,942.78-99,252,681.88

Finding the Fourth Proportional to 208,456,852.72, 312,481,942.78 and 99,252,681.88

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Solution

The fourth proportional to 208,456,852.72, 312,481,942.78 and 99,252,681.88 is: 148,782,208.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,456,852.72 : 312,481,942.78 = 99,252,681.88 : x
  2. Step 2: Convert to fraction form
    208,456,852.72/312,481,942.78 = 99,252,681.88/x
  3. Step 3: Cross multiply
    208,456,852.72x = 312,481,942.78 × 99,252,681.88
  4. Step 4: Simplify right side
    208,456,852.72x = 31,014,670,859,987,700
  5. Step 5: Solve for x
    x = 31,014,670,859,987,700/208,456,852.72
  6. Step 6: Final answer
    x = 148,782,208.19

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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.