Home / 18,890,790.96-28,336,089.42-7,377,427.20

Finding the Fourth Proportional to 18,890,790.96, 28,336,089.42 and 7,377,427.20

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Solution

The fourth proportional to 18,890,790.96, 28,336,089.42 and 7,377,427.20 is: 11,066,102.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,890,790.96 : 28,336,089.42 = 7,377,427.20 : x
  2. Step 2: Convert to fraction form
    18,890,790.96/28,336,089.42 = 7,377,427.20/x
  3. Step 3: Cross multiply
    18,890,790.96x = 28,336,089.42 × 7,377,427.20
  4. Step 4: Simplify right side
    18,890,790.96x = 209,047,436,828,740.25
  5. Step 5: Solve for x
    x = 209,047,436,828,740.25/18,890,790.96
  6. Step 6: Final answer
    x = 11,066,102.91

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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.