Home / 20,912,506,488.27-28,859,356,683.84-11,880,760,190.50

Finding the Fourth Proportional to 20,912,506,488.27, 28,859,356,683.84 and 11,880,760,190.50

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Solution

The fourth proportional to 20,912,506,488.27, 28,859,356,683.84 and 11,880,760,190.50 is: 16,395,504,585.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,912,506,488.27 : 28,859,356,683.84 = 11,880,760,190.50 : x
  2. Step 2: Convert to fraction form
    20,912,506,488.27/28,859,356,683.84 = 11,880,760,190.50/x
  3. Step 3: Cross multiply
    20,912,506,488.27x = 28,859,356,683.84 × 11,880,760,190.50
  4. Step 4: Simplify right side
    20,912,506,488.27x = 342,871,096,012,870,844,416
  5. Step 5: Solve for x
    x = 342,871,096,012,870,844,416/20,912,506,488.27
  6. Step 6: Final answer
    x = 16,395,504,585.03

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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.