Home / 12,038,639.76-18,057,609.72-3,519,176.40

Finding the Fourth Proportional to 12,038,639.76, 18,057,609.72 and 3,519,176.40

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Solution

The fourth proportional to 12,038,639.76, 18,057,609.72 and 3,519,176.40 is: 5,278,662.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,038,639.76 : 18,057,609.72 = 3,519,176.40 : x
  2. Step 2: Convert to fraction form
    12,038,639.76/18,057,609.72 = 3,519,176.40/x
  3. Step 3: Cross multiply
    12,038,639.76x = 18,057,609.72 × 3,519,176.40
  4. Step 4: Simplify right side
    12,038,639.76x = 63,547,913,967,034.60
  5. Step 5: Solve for x
    x = 63,547,913,967,034.60/12,038,639.76
  6. Step 6: Final answer
    x = 5,278,662.31

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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.