Home / 8,160,442,806.80-12,240,664,210.20-2,989,912,912.40

Finding the Fourth Proportional to 8,160,442,806.80, 12,240,664,210.20 and 2,989,912,912.40

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Solution

The fourth proportional to 8,160,442,806.80, 12,240,664,210.20 and 2,989,912,912.40 is: 4,484,869,368.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160,442,806.80 : 12,240,664,210.20 = 2,989,912,912.40 : x
  2. Step 2: Convert to fraction form
    8,160,442,806.80/12,240,664,210.20 = 2,989,912,912.40/x
  3. Step 3: Cross multiply
    8,160,442,806.80x = 12,240,664,210.20 × 2,989,912,912.40
  4. Step 4: Simplify right side
    8,160,442,806.80x = 36,598,519,978,429,530,112
  5. Step 5: Solve for x
    x = 36,598,519,978,429,530,112/8,160,442,806.80
  6. Step 6: Final answer
    x = 4,484,869,368.60

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1.5x scale

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.