Home / 1,008,021,427.45-1,512,032,141.18-317,998,433.05

Finding the Fourth Proportional to 1,008,021,427.45, 1,512,032,141.18 and 317,998,433.05

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Solution

The fourth proportional to 1,008,021,427.45, 1,512,032,141.18 and 317,998,433.05 is: 476,997,649.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,021,427.45 : 1,512,032,141.18 = 317,998,433.05 : x
  2. Step 2: Convert to fraction form
    1,008,021,427.45/1,512,032,141.18 = 317,998,433.05/x
  3. Step 3: Cross multiply
    1,008,021,427.45x = 1,512,032,141.18 × 317,998,433.05
  4. Step 4: Simplify right side
    1,008,021,427.45x = 480,823,851,614,886,400
  5. Step 5: Solve for x
    x = 480,823,851,614,886,400/1,008,021,427.45
  6. Step 6: Final answer
    x = 476,997,649.58

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Double scale
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Similar ratio
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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.