Home / 18,852,869.16-28,280,928.06-5,206,017.96

Finding the Fourth Proportional to 18,852,869.16, 28,280,928.06 and 5,206,017.96

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Solution

The fourth proportional to 18,852,869.16, 28,280,928.06 and 5,206,017.96 is: 7,809,475.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,852,869.16 : 28,280,928.06 = 5,206,017.96 : x
  2. Step 2: Convert to fraction form
    18,852,869.16/28,280,928.06 = 5,206,017.96/x
  3. Step 3: Cross multiply
    18,852,869.16x = 28,280,928.06 × 5,206,017.96
  4. Step 4: Simplify right side
    18,852,869.16x = 147,231,019,405,827.94
  5. Step 5: Solve for x
    x = 147,231,019,405,827.94/18,852,869.16
  6. Step 6: Final answer
    x = 7,809,475.48

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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.