Home / 19,318,316.54-28,990,760.73-7,958,765.16

Finding the Fourth Proportional to 19,318,316.54, 28,990,760.73 and 7,958,765.16

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Solution

The fourth proportional to 19,318,316.54, 28,990,760.73 and 7,958,765.16 is: 11,943,621.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,318,316.54 : 28,990,760.73 = 7,958,765.16 : x
  2. Step 2: Convert to fraction form
    19,318,316.54/28,990,760.73 = 7,958,765.16/x
  3. Step 3: Cross multiply
    19,318,316.54x = 28,990,760.73 × 7,958,765.16
  4. Step 4: Simplify right side
    19,318,316.54x = 230,730,656,429,974.81
  5. Step 5: Solve for x
    x = 230,730,656,429,974.81/19,318,316.54
  6. Step 6: Final answer
    x = 11,943,621.28

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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.