Home / 1,008,021,419.70-1,512,032,129.55-317,998,425.30

Finding the Fourth Proportional to 1,008,021,419.70, 1,512,032,129.55 and 317,998,425.30

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Solution

The fourth proportional to 1,008,021,419.70, 1,512,032,129.55 and 317,998,425.30 is: 476,997,637.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,021,419.70 : 1,512,032,129.55 = 317,998,425.30 : x
  2. Step 2: Convert to fraction form
    1,008,021,419.70/1,512,032,129.55 = 317,998,425.30/x
  3. Step 3: Cross multiply
    1,008,021,419.70x = 1,512,032,129.55 × 317,998,425.30
  4. Step 4: Simplify right side
    1,008,021,419.70x = 480,823,836,199,905,600
  5. Step 5: Solve for x
    x = 480,823,836,199,905,600/1,008,021,419.70
  6. Step 6: Final answer
    x = 476,997,637.95

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Double scale
Find fourth proportional to 1,008,021,420.70, 1,512,032,131.05 and 317,998,426.30
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.