Home / 13,178,621.40-19,780,683.48-6,359,994.51

Finding the Fourth Proportional to 13,178,621.40, 19,780,683.48 and 6,359,994.51

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Solution

The fourth proportional to 13,178,621.40, 19,780,683.48 and 6,359,994.51 is: 9,546,145.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,178,621.40 : 19,780,683.48 = 6,359,994.51 : x
  2. Step 2: Convert to fraction form
    13,178,621.40/19,780,683.48 = 6,359,994.51/x
  3. Step 3: Cross multiply
    13,178,621.40x = 19,780,683.48 × 6,359,994.51
  4. Step 4: Simplify right side
    13,178,621.40x = 125,805,038,336,847.69
  5. Step 5: Solve for x
    x = 125,805,038,336,847.69/13,178,621.40
  6. Step 6: Final answer
    x = 9,546,145.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.