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Finding the Third Proportional to 7,328,159 and 10,778,989

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Solution

The third proportional to 7,328,159 and 10,778,989 is: 15,854,814.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328,159 : 10,778,989 = 10,778,989 : x
  2. Step 2: Convert to fraction form
    7,328,159/10,778,989 = 10,778,989/x
  3. Step 3: Cross multiply
    7,328,159x = 10,778,989 × 10,778,989
  4. Step 4: Simplify right side
    7,328,159x = 116,186,603,862,121
  5. Step 5: Solve for x
    x = 116,186,603,862,121/7,328,159
  6. Step 6: Final answer
    x = 15,854,814.81

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.