Home / 289,712,496.60-434,568,744.90-221,688,048.60

Finding the Fourth Proportional to 289,712,496.60, 434,568,744.90 and 221,688,048.60

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Solution

The fourth proportional to 289,712,496.60, 434,568,744.90 and 221,688,048.60 is: 332,532,072.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,712,496.60 : 434,568,744.90 = 221,688,048.60 : x
  2. Step 2: Convert to fraction form
    289,712,496.60/434,568,744.90 = 221,688,048.60/x
  3. Step 3: Cross multiply
    289,712,496.60x = 434,568,744.90 × 221,688,048.60
  4. Step 4: Simplify right side
    289,712,496.60x = 96,338,697,039,432,192
  5. Step 5: Solve for x
    x = 96,338,697,039,432,192/289,712,496.60
  6. Step 6: Final answer
    x = 332,532,072.90

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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.