Home / 689,753,313.60-1,035,028,101.60-258,975,355.20

Finding the Fourth Proportional to 689,753,313.60, 1,035,028,101.60 and 258,975,355.20

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Solution

The fourth proportional to 689,753,313.60, 1,035,028,101.60 and 258,975,355.20 is: 388,612,515.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,753,313.60 : 1,035,028,101.60 = 258,975,355.20 : x
  2. Step 2: Convert to fraction form
    689,753,313.60/1,035,028,101.60 = 258,975,355.20/x
  3. Step 3: Cross multiply
    689,753,313.60x = 1,035,028,101.60 × 258,975,355.20
  4. Step 4: Simplify right side
    689,753,313.60x = 268,046,770,253,841,696
  5. Step 5: Solve for x
    x = 268,046,770,253,841,696/689,753,313.60
  6. Step 6: Final answer
    x = 388,612,515.47

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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.