Home / 13,130,407.74-18,122,986.02-7,699,649.34

Finding the Fourth Proportional to 13,130,407.74, 18,122,986.02 and 7,699,649.34

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Solution

The fourth proportional to 13,130,407.74, 18,122,986.02 and 7,699,649.34 is: 10,627,288.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,130,407.74 : 18,122,986.02 = 7,699,649.34 : x
  2. Step 2: Convert to fraction form
    13,130,407.74/18,122,986.02 = 7,699,649.34/x
  3. Step 3: Cross multiply
    13,130,407.74x = 18,122,986.02 × 7,699,649.34
  4. Step 4: Simplify right side
    13,130,407.74x = 139,540,637,347,722.22
  5. Step 5: Solve for x
    x = 139,540,637,347,722.22/13,130,407.74
  6. Step 6: Final answer
    x = 10,627,288.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.