Home / 499,347,699.84-689,100,959.52-276,345,608.40

Finding the Fourth Proportional to 499,347,699.84, 689,100,959.52 and 276,345,608.40

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Solution

The fourth proportional to 499,347,699.84, 689,100,959.52 and 276,345,608.40 is: 381,357,567.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,347,699.84 : 689,100,959.52 = 276,345,608.40 : x
  2. Step 2: Convert to fraction form
    499,347,699.84/689,100,959.52 = 276,345,608.40/x
  3. Step 3: Cross multiply
    499,347,699.84x = 689,100,959.52 × 276,345,608.40
  4. Step 4: Simplify right side
    499,347,699.84x = 190,430,023,907,578,144
  5. Step 5: Solve for x
    x = 190,430,023,907,578,144/499,347,699.84
  6. Step 6: Final answer
    x = 381,357,567.02

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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.