Home / 1,209,464,183.50-1,668,169,394.67-912,118,942.06

Finding the Fourth Proportional to 1,209,464,183.50, 1,668,169,394.67 and 912,118,942.06

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Solution

The fourth proportional to 1,209,464,183.50, 1,668,169,394.67 and 912,118,942.06 is: 1,258,052,056.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,464,183.50 : 1,668,169,394.67 = 912,118,942.06 : x
  2. Step 2: Convert to fraction form
    1,209,464,183.50/1,668,169,394.67 = 912,118,942.06/x
  3. Step 3: Cross multiply
    1,209,464,183.50x = 1,668,169,394.67 × 912,118,942.06
  4. Step 4: Simplify right side
    1,209,464,183.50x = 1,521,568,903,443,270,912
  5. Step 5: Solve for x
    x = 1,521,568,903,443,270,912/1,209,464,183.50
  6. Step 6: Final answer
    x = 1,258,052,056.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.