Home / 168,720,220.80-253,080,331.20-53,716,388.40

Finding the Fourth Proportional to 168,720,220.80, 253,080,331.20 and 53,716,388.40

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Solution

The fourth proportional to 168,720,220.80, 253,080,331.20 and 53,716,388.40 is: 80,574,582.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,720,220.80 : 253,080,331.20 = 53,716,388.40 : x
  2. Step 2: Convert to fraction form
    168,720,220.80/253,080,331.20 = 53,716,388.40/x
  3. Step 3: Cross multiply
    168,720,220.80x = 253,080,331.20 × 53,716,388.40
  4. Step 4: Simplify right side
    168,720,220.80x = 13,594,561,367,139,838
  5. Step 5: Solve for x
    x = 13,594,561,367,139,838/168,720,220.80
  6. Step 6: Final answer
    x = 80,574,582.60

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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.