Home / 512,143,813.53-706,683,237.62-286,054,938.45

Finding the Fourth Proportional to 512,143,813.53, 706,683,237.62 and 286,054,938.45

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Solution

The fourth proportional to 512,143,813.53, 706,683,237.62 and 286,054,938.45 is: 394,713,798.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,143,813.53 : 706,683,237.62 = 286,054,938.45 : x
  2. Step 2: Convert to fraction form
    512,143,813.53/706,683,237.62 = 286,054,938.45/x
  3. Step 3: Cross multiply
    512,143,813.53x = 706,683,237.62 × 286,054,938.45
  4. Step 4: Simplify right side
    512,143,813.53x = 202,150,230,039,605,536
  5. Step 5: Solve for x
    x = 202,150,230,039,605,536/512,143,813.53
  6. Step 6: Final answer
    x = 394,713,798.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.