Home / 382,429,372.60-572,888,231.70-209,596,886.20

Finding the Fourth Proportional to 382,429,372.60, 572,888,231.70 and 209,596,886.20

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Solution

The fourth proportional to 382,429,372.60, 572,888,231.70 and 209,596,886.20 is: 313,981,085.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,429,372.60 : 572,888,231.70 = 209,596,886.20 : x
  2. Step 2: Convert to fraction form
    382,429,372.60/572,888,231.70 = 209,596,886.20/x
  3. Step 3: Cross multiply
    382,429,372.60x = 572,888,231.70 × 209,596,886.20
  4. Step 4: Simplify right side
    382,429,372.60x = 120,075,589,504,944,128
  5. Step 5: Solve for x
    x = 120,075,589,504,944,128/382,429,372.60
  6. Step 6: Final answer
    x = 313,981,085.42

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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.