Home / 638,540,485.95-958,299,602.44-289,032,000.45

Finding the Fourth Proportional to 638,540,485.95, 958,299,602.44 and 289,032,000.45

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Solution

The fourth proportional to 638,540,485.95, 958,299,602.44 and 289,032,000.45 is: 433,769,286.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,540,485.95 : 958,299,602.44 = 289,032,000.45 : x
  2. Step 2: Convert to fraction form
    638,540,485.95/958,299,602.44 = 289,032,000.45/x
  3. Step 3: Cross multiply
    638,540,485.95x = 958,299,602.44 × 289,032,000.45
  4. Step 4: Simplify right side
    638,540,485.95x = 276,979,251,125,301,056
  5. Step 5: Solve for x
    x = 276,979,251,125,301,056/638,540,485.95
  6. Step 6: Final answer
    x = 433,769,286.71

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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.