Home / 524,910,390.90-724,387,017.78-286,770,999.60

Finding the Fourth Proportional to 524,910,390.90, 724,387,017.78 and 286,770,999.60

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Solution

The fourth proportional to 524,910,390.90, 724,387,017.78 and 286,770,999.60 is: 395,749,813.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,910,390.90 : 724,387,017.78 = 286,770,999.60 : x
  2. Step 2: Convert to fraction form
    524,910,390.90/724,387,017.78 = 286,770,999.60/x
  3. Step 3: Cross multiply
    524,910,390.90x = 724,387,017.78 × 286,770,999.60
  4. Step 4: Simplify right side
    524,910,390.90x = 207,733,189,186,033,568
  5. Step 5: Solve for x
    x = 207,733,189,186,033,568/524,910,390.90
  6. Step 6: Final answer
    x = 395,749,813.28

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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.