Home / 168,053,006.40-252,079,509.60-139,355,192.40

Finding the Fourth Proportional to 168,053,006.40, 252,079,509.60 and 139,355,192.40

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Solution

The fourth proportional to 168,053,006.40, 252,079,509.60 and 139,355,192.40 is: 209,032,788.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,053,006.40 : 252,079,509.60 = 139,355,192.40 : x
  2. Step 2: Convert to fraction form
    168,053,006.40/252,079,509.60 = 139,355,192.40/x
  3. Step 3: Cross multiply
    168,053,006.40x = 252,079,509.60 × 139,355,192.40
  4. Step 4: Simplify right side
    168,053,006.40x = 35,128,588,560,405,648
  5. Step 5: Solve for x
    x = 35,128,588,560,405,648/168,053,006.40
  6. Step 6: Final answer
    x = 209,032,788.60

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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.