Home / 1,065,120,998.40-1,597,681,497.60-949,479,436.80

Finding the Fourth Proportional to 1,065,120,998.40, 1,597,681,497.60 and 949,479,436.80

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Solution

The fourth proportional to 1,065,120,998.40, 1,597,681,497.60 and 949,479,436.80 is: 1,424,219,155.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065,120,998.40 : 1,597,681,497.60 = 949,479,436.80 : x
  2. Step 2: Convert to fraction form
    1,065,120,998.40/1,597,681,497.60 = 949,479,436.80/x
  3. Step 3: Cross multiply
    1,065,120,998.40x = 1,597,681,497.60 × 949,479,436.80
  4. Step 4: Simplify right side
    1,065,120,998.40x = 1,516,965,728,527,028,480
  5. Step 5: Solve for x
    x = 1,516,965,728,527,028,480/1,065,120,998.40
  6. Step 6: Final answer
    x = 1,424,219,155.20

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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.