Home / 168,242,661.40-252,363,992.10-103,619,435.80

Finding the Fourth Proportional to 168,242,661.40, 252,363,992.10 and 103,619,435.80

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Solution

The fourth proportional to 168,242,661.40, 252,363,992.10 and 103,619,435.80 is: 155,429,153.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,242,661.40 : 252,363,992.10 = 103,619,435.80 : x
  2. Step 2: Convert to fraction form
    168,242,661.40/252,363,992.10 = 103,619,435.80/x
  3. Step 3: Cross multiply
    168,242,661.40x = 252,363,992.10 × 103,619,435.80
  4. Step 4: Simplify right side
    168,242,661.40x = 26,149,814,477,637,656
  5. Step 5: Solve for x
    x = 26,149,814,477,637,656/168,242,661.40
  6. Step 6: Final answer
    x = 155,429,153.70

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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.