Home / 211,456,700.55-317,202,006.15-80,361,779.94

Finding the Fourth Proportional to 211,456,700.55, 317,202,006.15 and 80,361,779.94

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Solution

The fourth proportional to 211,456,700.55, 317,202,006.15 and 80,361,779.94 is: 120,549,113.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,456,700.55 : 317,202,006.15 = 80,361,779.94 : x
  2. Step 2: Convert to fraction form
    211,456,700.55/317,202,006.15 = 80,361,779.94/x
  3. Step 3: Cross multiply
    211,456,700.55x = 317,202,006.15 × 80,361,779.94
  4. Step 4: Simplify right side
    211,456,700.55x = 25,490,917,814,752,824
  5. Step 5: Solve for x
    x = 25,490,917,814,752,824/211,456,700.55
  6. Step 6: Final answer
    x = 120,549,113.59

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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.