Home / 1,311,489,798.90-1,967,243,154.21-524,609,189.34

Finding the Fourth Proportional to 1,311,489,798.90, 1,967,243,154.21 and 524,609,189.34

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Solution

The fourth proportional to 1,311,489,798.90, 1,967,243,154.21 and 524,609,189.34 is: 786,917,166.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,489,798.90 : 1,967,243,154.21 = 524,609,189.34 : x
  2. Step 2: Convert to fraction form
    1,311,489,798.90/1,967,243,154.21 = 524,609,189.34/x
  3. Step 3: Cross multiply
    1,311,489,798.90x = 1,967,243,154.21 × 524,609,189.34
  4. Step 4: Simplify right side
    1,311,489,798.90x = 1,032,033,836,364,772,736
  5. Step 5: Solve for x
    x = 1,032,033,836,364,772,736/1,311,489,798.90
  6. Step 6: Final answer
    x = 786,917,166.44

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Double scale
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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.