Home / 459,968,659.40-689,952,989.10-276,302,649.80

Finding the Fourth Proportional to 459,968,659.40, 689,952,989.10 and 276,302,649.80

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Solution

The fourth proportional to 459,968,659.40, 689,952,989.10 and 276,302,649.80 is: 414,453,974.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,968,659.40 : 689,952,989.10 = 276,302,649.80 : x
  2. Step 2: Convert to fraction form
    459,968,659.40/689,952,989.10 = 276,302,649.80/x
  3. Step 3: Cross multiply
    459,968,659.40x = 689,952,989.10 × 276,302,649.80
  4. Step 4: Simplify right side
    459,968,659.40x = 190,635,839,125,760,544
  5. Step 5: Solve for x
    x = 190,635,839,125,760,544/459,968,659.40
  6. Step 6: Final answer
    x = 414,453,974.70

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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.