Home / 12,646,931.63-18,972,207.05-3,893,950.80

Finding the Fourth Proportional to 12,646,931.63, 18,972,207.05 and 3,893,950.80

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Solution

The fourth proportional to 12,646,931.63, 18,972,207.05 and 3,893,950.80 is: 5,841,483.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,646,931.63 : 18,972,207.05 = 3,893,950.80 : x
  2. Step 2: Convert to fraction form
    12,646,931.63/18,972,207.05 = 3,893,950.80/x
  3. Step 3: Cross multiply
    12,646,931.63x = 18,972,207.05 × 3,893,950.80
  4. Step 4: Simplify right side
    12,646,931.63x = 73,876,840,800,643.39
  5. Step 5: Solve for x
    x = 73,876,840,800,643.39/12,646,931.63
  6. Step 6: Final answer
    x = 5,841,483.37

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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.