Home / 519,453,890.82-716,847,060.65-281,299,486.23

Finding the Fourth Proportional to 519,453,890.82, 716,847,060.65 and 281,299,486.23

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Solution

The fourth proportional to 519,453,890.82, 716,847,060.65 and 281,299,486.23 is: 388,193,665.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,453,890.82 : 716,847,060.65 = 281,299,486.23 : x
  2. Step 2: Convert to fraction form
    519,453,890.82/716,847,060.65 = 281,299,486.23/x
  3. Step 3: Cross multiply
    519,453,890.82x = 716,847,060.65 × 281,299,486.23
  4. Step 4: Simplify right side
    519,453,890.82x = 201,648,709,864,924,160
  5. Step 5: Solve for x
    x = 201,648,709,864,924,160/519,453,890.82
  6. Step 6: Final answer
    x = 388,193,665.36

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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.