Home / 12,643,071.21-18,956,926.80-4,957,507.98

Finding the Fourth Proportional to 12,643,071.21, 18,956,926.80 and 4,957,507.98

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Solution

The fourth proportional to 12,643,071.21, 18,956,926.80 and 4,957,507.98 is: 7,433,250.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,643,071.21 : 18,956,926.80 = 4,957,507.98 : x
  2. Step 2: Convert to fraction form
    12,643,071.21/18,956,926.80 = 4,957,507.98/x
  3. Step 3: Cross multiply
    12,643,071.21x = 18,956,926.80 × 4,957,507.98
  4. Step 4: Simplify right side
    12,643,071.21x = 93,979,115,887,275.88
  5. Step 5: Solve for x
    x = 93,979,115,887,275.88/12,643,071.21
  6. Step 6: Final answer
    x = 7,433,250.54

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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.