Home / 15,303,650.40-21,118,228.08-8,776,942.56

Finding the Fourth Proportional to 15,303,650.40, 21,118,228.08 and 8,776,942.56

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Solution

The fourth proportional to 15,303,650.40, 21,118,228.08 and 8,776,942.56 is: 12,111,716.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,303,650.40 : 21,118,228.08 = 8,776,942.56 : x
  2. Step 2: Convert to fraction form
    15,303,650.40/21,118,228.08 = 8,776,942.56/x
  3. Step 3: Cross multiply
    15,303,650.40x = 21,118,228.08 × 8,776,942.56
  4. Step 4: Simplify right side
    15,303,650.40x = 185,353,474,827,139.09
  5. Step 5: Solve for x
    x = 185,353,474,827,139.09/15,303,650.40
  6. Step 6: Final answer
    x = 12,111,716.48

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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.