Home / 354,295,280.70-531,442,921.05-199,327,085.10

Finding the Fourth Proportional to 354,295,280.70, 531,442,921.05 and 199,327,085.10

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Solution

The fourth proportional to 354,295,280.70, 531,442,921.05 and 199,327,085.10 is: 298,990,627.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,295,280.70 : 531,442,921.05 = 199,327,085.10 : x
  2. Step 2: Convert to fraction form
    354,295,280.70/531,442,921.05 = 199,327,085.10/x
  3. Step 3: Cross multiply
    354,295,280.70x = 531,442,921.05 × 199,327,085.10
  4. Step 4: Simplify right side
    354,295,280.70x = 105,930,968,349,925,936
  5. Step 5: Solve for x
    x = 105,930,968,349,925,936/354,295,280.70
  6. Step 6: Final answer
    x = 298,990,627.65

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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.