Home / 168,052,962.40-252,079,443.60-139,355,148.40

Finding the Fourth Proportional to 168,052,962.40, 252,079,443.60 and 139,355,148.40

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Solution

The fourth proportional to 168,052,962.40, 252,079,443.60 and 139,355,148.40 is: 209,032,722.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,052,962.40 : 252,079,443.60 = 139,355,148.40 : x
  2. Step 2: Convert to fraction form
    168,052,962.40/252,079,443.60 = 139,355,148.40/x
  3. Step 3: Cross multiply
    168,052,962.40x = 252,079,443.60 × 139,355,148.40
  4. Step 4: Simplify right side
    168,052,962.40x = 35,128,568,271,467,432
  5. Step 5: Solve for x
    x = 35,128,568,271,467,432/168,052,962.40
  6. Step 6: Final answer
    x = 209,032,722.60

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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.