Home / 13,130,356.74-18,122,915.61-7,699,598.34

Finding the Fourth Proportional to 13,130,356.74, 18,122,915.61 and 7,699,598.34

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Solution

The fourth proportional to 13,130,356.74, 18,122,915.61 and 7,699,598.34 is: 10,627,218.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,130,356.74 : 18,122,915.61 = 7,699,598.34 : x
  2. Step 2: Convert to fraction form
    13,130,356.74/18,122,915.61 = 7,699,598.34/x
  3. Step 3: Cross multiply
    13,130,356.74x = 18,122,915.61 × 7,699,598.34
  4. Step 4: Simplify right side
    13,130,356.74x = 139,539,170,946,716.08
  5. Step 5: Solve for x
    x = 139,539,170,946,716.08/13,130,356.74
  6. Step 6: Final answer
    x = 10,627,218.57

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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.