Home / 12,678,657.42-17,477,133.42-7,774,786.20

Finding the Fourth Proportional to 12,678,657.42, 17,477,133.42 and 7,774,786.20

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Solution

The fourth proportional to 12,678,657.42, 17,477,133.42 and 7,774,786.20 is: 10,717,300.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,678,657.42 : 17,477,133.42 = 7,774,786.20 : x
  2. Step 2: Convert to fraction form
    12,678,657.42/17,477,133.42 = 7,774,786.20/x
  3. Step 3: Cross multiply
    12,678,657.42x = 17,477,133.42 × 7,774,786.20
  4. Step 4: Simplify right side
    12,678,657.42x = 135,880,975,729,374.83
  5. Step 5: Solve for x
    x = 135,880,975,729,374.83/12,678,657.42
  6. Step 6: Final answer
    x = 10,717,300.04

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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.