Home / 6,898,208,010.40-10,347,312,015.60-1,991,041,904.80

Finding the Fourth Proportional to 6,898,208,010.40, 10,347,312,015.60 and 1,991,041,904.80

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Solution

The fourth proportional to 6,898,208,010.40, 10,347,312,015.60 and 1,991,041,904.80 is: 2,986,562,857.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,898,208,010.40 : 10,347,312,015.60 = 1,991,041,904.80 : x
  2. Step 2: Convert to fraction form
    6,898,208,010.40/10,347,312,015.60 = 1,991,041,904.80/x
  3. Step 3: Cross multiply
    6,898,208,010.40x = 10,347,312,015.60 × 1,991,041,904.80
  4. Step 4: Simplify right side
    6,898,208,010.40x = 20,601,931,825,100,152,832
  5. Step 5: Solve for x
    x = 20,601,931,825,100,152,832/6,898,208,010.40
  6. Step 6: Final answer
    x = 2,986,562,857.20

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Double scale
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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.