Home / 3,985,477,959.78-5,978,787,477.75-1,225,338,730.02

Finding the Fourth Proportional to 3,985,477,959.78, 5,978,787,477.75 and 1,225,338,730.02

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Solution

The fourth proportional to 3,985,477,959.78, 5,978,787,477.75 and 1,225,338,730.02 is: 1,838,183,507.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985,477,959.78 : 5,978,787,477.75 = 1,225,338,730.02 : x
  2. Step 2: Convert to fraction form
    3,985,477,959.78/5,978,787,477.75 = 1,225,338,730.02/x
  3. Step 3: Cross multiply
    3,985,477,959.78x = 5,978,787,477.75 × 1,225,338,730.02
  4. Step 4: Simplify right side
    3,985,477,959.78x = 7,326,039,855,045,663,744
  5. Step 5: Solve for x
    x = 7,326,039,855,045,663,744/3,985,477,959.78
  6. Step 6: Final answer
    x = 1,838,183,507.47

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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.