Home / 18,943,143.36-28,409,986.08-7,430,950.32

Finding the Fourth Proportional to 18,943,143.36, 28,409,986.08 and 7,430,950.32

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Solution

The fourth proportional to 18,943,143.36, 28,409,986.08 and 7,430,950.32 is: 11,144,570.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,943,143.36 : 28,409,986.08 = 7,430,950.32 : x
  2. Step 2: Convert to fraction form
    18,943,143.36/28,409,986.08 = 7,430,950.32/x
  3. Step 3: Cross multiply
    18,943,143.36x = 28,409,986.08 × 7,430,950.32
  4. Step 4: Simplify right side
    18,943,143.36x = 211,113,195,152,371.53
  5. Step 5: Solve for x
    x = 211,113,195,152,371.53/18,943,143.36
  6. Step 6: Final answer
    x = 11,144,570.42

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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.