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Finding the Fourth Proportional to 56,008,488, 84,012,732 and 13,458,216

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Solution

The fourth proportional to 56,008,488, 84,012,732 and 13,458,216 is: 20,187,324

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,008,488 : 84,012,732 = 13,458,216 : x
  2. Step 2: Convert to fraction form
    56,008,488/84,012,732 = 13,458,216/x
  3. Step 3: Cross multiply
    56,008,488x = 84,012,732 × 13,458,216
  4. Step 4: Simplify right side
    56,008,488x = 1,130,661,494,006,112
  5. Step 5: Solve for x
    x = 1,130,661,494,006,112/56,008,488
  6. Step 6: Final answer
    x = 20,187,324

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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.