Home / 429,734,869.61-644,601,499.81-134,652,579.44

Finding the Fourth Proportional to 429,734,869.61, 644,601,499.81 and 134,652,579.44

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Solution

The fourth proportional to 429,734,869.61, 644,601,499.81 and 134,652,579.44 is: 201,978,617.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,734,869.61 : 644,601,499.81 = 134,652,579.44 : x
  2. Step 2: Convert to fraction form
    429,734,869.61/644,601,499.81 = 134,652,579.44/x
  3. Step 3: Cross multiply
    429,734,869.61x = 644,601,499.81 × 134,652,579.44
  4. Step 4: Simplify right side
    429,734,869.61x = 86,797,254,660,378,624
  5. Step 5: Solve for x
    x = 86,797,254,660,378,624/429,734,869.61
  6. Step 6: Final answer
    x = 201,978,617.05

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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.