Home / 211,768,483.20-317,589,739.20-82,301,582.40

Finding the Fourth Proportional to 211,768,483.20, 317,589,739.20 and 82,301,582.40

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Solution

The fourth proportional to 211,768,483.20, 317,589,739.20 and 82,301,582.40 is: 123,427,894.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,768,483.20 : 317,589,739.20 = 82,301,582.40 : x
  2. Step 2: Convert to fraction form
    211,768,483.20/317,589,739.20 = 82,301,582.40/x
  3. Step 3: Cross multiply
    211,768,483.20x = 317,589,739.20 × 82,301,582.40
  4. Step 4: Simplify right side
    211,768,483.20x = 26,138,138,090,163,312
  5. Step 5: Solve for x
    x = 26,138,138,090,163,312/211,768,483.20
  6. Step 6: Final answer
    x = 123,427,894.91

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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.