Home / 1,992,038,431.20-2,988,505,544.40-611,916,626.40

Finding the Fourth Proportional to 1,992,038,431.20, 2,988,505,544.40 and 611,916,626.40

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Solution

The fourth proportional to 1,992,038,431.20, 2,988,505,544.40 and 611,916,626.40 is: 918,012,525.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,038,431.20 : 2,988,505,544.40 = 611,916,626.40 : x
  2. Step 2: Convert to fraction form
    1,992,038,431.20/2,988,505,544.40 = 611,916,626.40/x
  3. Step 3: Cross multiply
    1,992,038,431.20x = 2,988,505,544.40 × 611,916,626.40
  4. Step 4: Simplify right side
    1,992,038,431.20x = 1,828,716,230,706,943,488
  5. Step 5: Solve for x
    x = 1,828,716,230,706,943,488/1,992,038,431.20
  6. Step 6: Final answer
    x = 918,012,525.29

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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.