Home / 655,538,586.40-983,150,415.60-378,590,903.20

Finding the Fourth Proportional to 655,538,586.40, 983,150,415.60 and 378,590,903.20

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Solution

The fourth proportional to 655,538,586.40, 983,150,415.60 and 378,590,903.20 is: 567,795,415.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,538,586.40 : 983,150,415.60 = 378,590,903.20 : x
  2. Step 2: Convert to fraction form
    655,538,586.40/983,150,415.60 = 378,590,903.20/x
  3. Step 3: Cross multiply
    655,538,586.40x = 983,150,415.60 × 378,590,903.20
  4. Step 4: Simplify right side
    655,538,586.40x = 372,211,803,823,459,392
  5. Step 5: Solve for x
    x = 372,211,803,823,459,392/655,538,586.40
  6. Step 6: Final answer
    x = 567,795,415.17

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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.