Home / 199,360,018.60-299,173,775.10-69,967,378.60

Finding the Fourth Proportional to 199,360,018.60, 299,173,775.10 and 69,967,378.60

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Solution

The fourth proportional to 199,360,018.60, 299,173,775.10 and 69,967,378.60 is: 104,998,007.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,360,018.60 : 299,173,775.10 = 69,967,378.60 : x
  2. Step 2: Convert to fraction form
    199,360,018.60/299,173,775.10 = 69,967,378.60/x
  3. Step 3: Cross multiply
    199,360,018.60x = 299,173,775.10 × 69,967,378.60
  4. Step 4: Simplify right side
    199,360,018.60x = 20,932,404,789,612,952
  5. Step 5: Solve for x
    x = 20,932,404,789,612,952/199,360,018.60
  6. Step 6: Final answer
    x = 104,998,007.81

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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.