Home / 659,340,523.80-989,010,785.70-199,349,688.60

Finding the Fourth Proportional to 659,340,523.80, 989,010,785.70 and 199,349,688.60

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Solution

The fourth proportional to 659,340,523.80, 989,010,785.70 and 199,349,688.60 is: 299,024,532.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,340,523.80 : 989,010,785.70 = 199,349,688.60 : x
  2. Step 2: Convert to fraction form
    659,340,523.80/989,010,785.70 = 199,349,688.60/x
  3. Step 3: Cross multiply
    659,340,523.80x = 989,010,785.70 × 199,349,688.60
  4. Step 4: Simplify right side
    659,340,523.80x = 197,158,992,151,336,352
  5. Step 5: Solve for x
    x = 197,158,992,151,336,352/659,340,523.80
  6. Step 6: Final answer
    x = 299,024,532.90

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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.