Home / 354,295,000.80-531,442,501.20-199,326,805.20

Finding the Fourth Proportional to 354,295,000.80, 531,442,501.20 and 199,326,805.20

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Solution

The fourth proportional to 354,295,000.80, 531,442,501.20 and 199,326,805.20 is: 298,990,207.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,295,000.80 : 531,442,501.20 = 199,326,805.20 : x
  2. Step 2: Convert to fraction form
    354,295,000.80/531,442,501.20 = 199,326,805.20/x
  3. Step 3: Cross multiply
    354,295,000.80x = 531,442,501.20 × 199,326,805.20
  4. Step 4: Simplify right side
    354,295,000.80x = 105,930,735,911,693,152
  5. Step 5: Solve for x
    x = 105,930,735,911,693,152/354,295,000.80
  6. Step 6: Final answer
    x = 298,990,207.80

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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.