Home / 863,642,644,602.45-1,191,864,313,755.30-478,266,990,454

Finding the Fourth Proportional to 863,642,644,602.45, 1,191,864,313,755.30 and 478,266,990,454

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Solution

The fourth proportional to 863,642,644,602.45, 1,191,864,313,755.30 and 478,266,990,454 is: 660,029,193,708.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,642,644,602.45 : 1,191,864,313,755.30 = 478,266,990,454 : x
  2. Step 2: Convert to fraction form
    863,642,644,602.45/1,191,864,313,755.30 = 478,266,990,454/x
  3. Step 3: Cross multiply
    863,642,644,602.45x = 1,191,864,313,755.30 × 478,266,990,454
  4. Step 4: Simplify right side
    863,642,644,602.45x = 570,029,358,369,269,339,914,240
  5. Step 5: Solve for x
    x = 570,029,358,369,269,339,914,240/863,642,644,602.45
  6. Step 6: Final answer
    x = 660,029,193,708.54

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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.