Home / 660,768,210.36-990,259,469.28-251,601,155.64

Finding the Fourth Proportional to 660,768,210.36, 990,259,469.28 and 251,601,155.64

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Solution

The fourth proportional to 660,768,210.36, 990,259,469.28 and 251,601,155.64 is: 377,061,763.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,768,210.36 : 990,259,469.28 = 251,601,155.64 : x
  2. Step 2: Convert to fraction form
    660,768,210.36/990,259,469.28 = 251,601,155.64/x
  3. Step 3: Cross multiply
    660,768,210.36x = 990,259,469.28 × 251,601,155.64
  4. Step 4: Simplify right side
    660,768,210.36x = 249,150,426,854,301,056
  5. Step 5: Solve for x
    x = 249,150,426,854,301,056/660,768,210.36
  6. Step 6: Final answer
    x = 377,061,763.79

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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.