Home / 721,225,410.86-1,081,562,343.60-393,525,770.31

Finding the Fourth Proportional to 721,225,410.86, 1,081,562,343.60 and 393,525,770.31

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Solution

The fourth proportional to 721,225,410.86, 1,081,562,343.60 and 393,525,770.31 is: 590,138,184.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,225,410.86 : 1,081,562,343.60 = 393,525,770.31 : x
  2. Step 2: Convert to fraction form
    721,225,410.86/1,081,562,343.60 = 393,525,770.31/x
  3. Step 3: Cross multiply
    721,225,410.86x = 1,081,562,343.60 × 393,525,770.31
  4. Step 4: Simplify right side
    721,225,410.86x = 425,622,654,403,478,848
  5. Step 5: Solve for x
    x = 425,622,654,403,478,848/721,225,410.86
  6. Step 6: Final answer
    x = 590,138,184.26

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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.