Home / 659,431,501.60-989,290,719.60-199,357,657.60

Finding the Fourth Proportional to 659,431,501.60, 989,290,719.60 and 199,357,657.60

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Solution

The fourth proportional to 659,431,501.60, 989,290,719.60 and 199,357,657.60 is: 299,079,859.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,431,501.60 : 989,290,719.60 = 199,357,657.60 : x
  2. Step 2: Convert to fraction form
    659,431,501.60/989,290,719.60 = 199,357,657.60/x
  3. Step 3: Cross multiply
    659,431,501.60x = 989,290,719.60 × 199,357,657.60
  4. Step 4: Simplify right side
    659,431,501.60x = 197,222,680,544,874,400
  5. Step 5: Solve for x
    x = 197,222,680,544,874,400/659,431,501.60
  6. Step 6: Final answer
    x = 299,079,859.04

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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.