Home / 1,008,021,360.20-1,512,032,040.30-317,998,365.80

Finding the Fourth Proportional to 1,008,021,360.20, 1,512,032,040.30 and 317,998,365.80

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Solution

The fourth proportional to 1,008,021,360.20, 1,512,032,040.30 and 317,998,365.80 is: 476,997,548.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,021,360.20 : 1,512,032,040.30 = 317,998,365.80 : x
  2. Step 2: Convert to fraction form
    1,008,021,360.20/1,512,032,040.30 = 317,998,365.80/x
  3. Step 3: Cross multiply
    1,008,021,360.20x = 1,512,032,040.30 × 317,998,365.80
  4. Step 4: Simplify right side
    1,008,021,360.20x = 480,823,717,852,639,744
  5. Step 5: Solve for x
    x = 480,823,717,852,639,744/1,008,021,360.20
  6. Step 6: Final answer
    x = 476,997,548.70

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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.