Home / 686,598,765.15-1,029,898,147.73-201,924,573.15

Finding the Fourth Proportional to 686,598,765.15, 1,029,898,147.73 and 201,924,573.15

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Solution

The fourth proportional to 686,598,765.15, 1,029,898,147.73 and 201,924,573.15 is: 302,886,859.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,598,765.15 : 1,029,898,147.73 = 201,924,573.15 : x
  2. Step 2: Convert to fraction form
    686,598,765.15/1,029,898,147.73 = 201,924,573.15/x
  3. Step 3: Cross multiply
    686,598,765.15x = 1,029,898,147.73 × 201,924,573.15
  4. Step 4: Simplify right side
    686,598,765.15x = 207,961,743,868,355,904
  5. Step 5: Solve for x
    x = 207,961,743,868,355,904/686,598,765.15
  6. Step 6: Final answer
    x = 302,886,859.73

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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.