Home / 1,328,024,434.80-1,992,335,250.60-407,943,231.60

Finding the Fourth Proportional to 1,328,024,434.80, 1,992,335,250.60 and 407,943,231.60

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Solution

The fourth proportional to 1,328,024,434.80, 1,992,335,250.60 and 407,943,231.60 is: 612,006,571.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,024,434.80 : 1,992,335,250.60 = 407,943,231.60 : x
  2. Step 2: Convert to fraction form
    1,328,024,434.80/1,992,335,250.60 = 407,943,231.60/x
  3. Step 3: Cross multiply
    1,328,024,434.80x = 1,992,335,250.60 × 407,943,231.60
  4. Step 4: Simplify right side
    1,328,024,434.80x = 812,759,680,560,359,808
  5. Step 5: Solve for x
    x = 812,759,680,560,359,808/1,328,024,434.80
  6. Step 6: Final answer
    x = 612,006,571.01

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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.