Home / 168,053,009.40-252,079,514.10-139,355,195.40

Finding the Fourth Proportional to 168,053,009.40, 252,079,514.10 and 139,355,195.40

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Solution

The fourth proportional to 168,053,009.40, 252,079,514.10 and 139,355,195.40 is: 209,032,793.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,053,009.40 : 252,079,514.10 = 139,355,195.40 : x
  2. Step 2: Convert to fraction form
    168,053,009.40/252,079,514.10 = 139,355,195.40/x
  3. Step 3: Cross multiply
    168,053,009.40x = 252,079,514.10 × 139,355,195.40
  4. Step 4: Simplify right side
    168,053,009.40x = 35,128,589,943,742,556
  5. Step 5: Solve for x
    x = 35,128,589,943,742,556/168,053,009.40
  6. Step 6: Final answer
    x = 209,032,793.10

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1.5x scale

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.