Home / 289,722,137.60-434,583,206.40-221,697,689.60

Finding the Fourth Proportional to 289,722,137.60, 434,583,206.40 and 221,697,689.60

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Solution

The fourth proportional to 289,722,137.60, 434,583,206.40 and 221,697,689.60 is: 332,546,534.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,722,137.60 : 434,583,206.40 = 221,697,689.60 : x
  2. Step 2: Convert to fraction form
    289,722,137.60/434,583,206.40 = 221,697,689.60/x
  3. Step 3: Cross multiply
    289,722,137.60x = 434,583,206.40 × 221,697,689.60
  4. Step 4: Simplify right side
    289,722,137.60x = 96,346,092,797,839,920
  5. Step 5: Solve for x
    x = 96,346,092,797,839,920/289,722,137.60
  6. Step 6: Final answer
    x = 332,546,534.40

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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.