Home / 659,651,390.10-989,589,059.55-199,585,905.30

Finding the Fourth Proportional to 659,651,390.10, 989,589,059.55 and 199,585,905.30

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Solution

The fourth proportional to 659,651,390.10, 989,589,059.55 and 199,585,905.30 is: 299,412,737.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,651,390.10 : 989,589,059.55 = 199,585,905.30 : x
  2. Step 2: Convert to fraction form
    659,651,390.10/989,589,059.55 = 199,585,905.30/x
  3. Step 3: Cross multiply
    659,651,390.10x = 989,589,059.55 × 199,585,905.30
  4. Step 4: Simplify right side
    659,651,390.10x = 197,508,028,325,262,368
  5. Step 5: Solve for x
    x = 197,508,028,325,262,368/659,651,390.10
  6. Step 6: Final answer
    x = 299,412,737.23

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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.