Home / 15,283,144.54-21,076,263.75-9,778,261.42

Finding the Fourth Proportional to 15,283,144.54, 21,076,263.75 and 9,778,261.42

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Solution

The fourth proportional to 15,283,144.54, 21,076,263.75 and 9,778,261.42 is: 13,484,739.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,283,144.54 : 21,076,263.75 = 9,778,261.42 : x
  2. Step 2: Convert to fraction form
    15,283,144.54/21,076,263.75 = 9,778,261.42/x
  3. Step 3: Cross multiply
    15,283,144.54x = 21,076,263.75 × 9,778,261.42
  4. Step 4: Simplify right side
    15,283,144.54x = 206,089,216,704,369.53
  5. Step 5: Solve for x
    x = 206,089,216,704,369.53/15,283,144.54
  6. Step 6: Final answer
    x = 13,484,739.10

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1.5x scale

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.