Home / 258,048,009.60-387,072,014.40-219,080,918.40

Finding the Fourth Proportional to 258,048,009.60, 387,072,014.40 and 219,080,918.40

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Solution

The fourth proportional to 258,048,009.60, 387,072,014.40 and 219,080,918.40 is: 328,621,377.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,048,009.60 : 387,072,014.40 = 219,080,918.40 : x
  2. Step 2: Convert to fraction form
    258,048,009.60/387,072,014.40 = 219,080,918.40/x
  3. Step 3: Cross multiply
    258,048,009.60x = 387,072,014.40 × 219,080,918.40
  4. Step 4: Simplify right side
    258,048,009.60x = 84,800,092,401,690,016
  5. Step 5: Solve for x
    x = 84,800,092,401,690,016/258,048,009.60
  6. Step 6: Final answer
    x = 328,621,377.60

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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.