Home / 378,459,173.64-567,686,378.30-203,664,543.95

Finding the Fourth Proportional to 378,459,173.64, 567,686,378.30 and 203,664,543.95

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Solution

The fourth proportional to 378,459,173.64, 567,686,378.30 and 203,664,543.95 is: 305,495,533.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,459,173.64 : 567,686,378.30 = 203,664,543.95 : x
  2. Step 2: Convert to fraction form
    378,459,173.64/567,686,378.30 = 203,664,543.95/x
  3. Step 3: Cross multiply
    378,459,173.64x = 567,686,378.30 × 203,664,543.95
  4. Step 4: Simplify right side
    378,459,173.64x = 115,617,587,339,239,904
  5. Step 5: Solve for x
    x = 115,617,587,339,239,904/378,459,173.64
  6. Step 6: Final answer
    x = 305,495,533.98

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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.