Home / 907,289,906.40-1,360,934,859.60-261,057,650.40

Finding the Fourth Proportional to 907,289,906.40, 1,360,934,859.60 and 261,057,650.40

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Solution

The fourth proportional to 907,289,906.40, 1,360,934,859.60 and 261,057,650.40 is: 391,586,475.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,289,906.40 : 1,360,934,859.60 = 261,057,650.40 : x
  2. Step 2: Convert to fraction form
    907,289,906.40/1,360,934,859.60 = 261,057,650.40/x
  3. Step 3: Cross multiply
    907,289,906.40x = 1,360,934,859.60 × 261,057,650.40
  4. Step 4: Simplify right side
    907,289,906.40x = 355,282,456,794,629,888
  5. Step 5: Solve for x
    x = 355,282,456,794,629,888/907,289,906.40
  6. Step 6: Final answer
    x = 391,586,475.60

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Double scale
Find fourth proportional to 907,289,907.40, 1,360,934,861.10 and 261,057,651.40
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.