Home / 1,008,021,417.70-1,512,032,126.56-317,998,423.30

Finding the Fourth Proportional to 1,008,021,417.70, 1,512,032,126.56 and 317,998,423.30

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Solution

The fourth proportional to 1,008,021,417.70, 1,512,032,126.56 and 317,998,423.30 is: 476,997,634.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,021,417.70 : 1,512,032,126.56 = 317,998,423.30 : x
  2. Step 2: Convert to fraction form
    1,008,021,417.70/1,512,032,126.56 = 317,998,423.30/x
  3. Step 3: Cross multiply
    1,008,021,417.70x = 1,512,032,126.56 × 317,998,423.30
  4. Step 4: Simplify right side
    1,008,021,417.70x = 480,823,832,225,026,048
  5. Step 5: Solve for x
    x = 480,823,832,225,026,048/1,008,021,417.70
  6. Step 6: Final answer
    x = 476,997,634.95

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Double scale
Find fourth proportional to 1,008,021,418.70, 1,512,032,128.06 and 317,998,424.30
Similar ratio
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1.5x scale

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.