Home / 990,784,953.60-1,486,177,430.40-300,691,100.40

Finding the Fourth Proportional to 990,784,953.60, 1,486,177,430.40 and 300,691,100.40

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Solution

The fourth proportional to 990,784,953.60, 1,486,177,430.40 and 300,691,100.40 is: 451,036,650.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,784,953.60 : 1,486,177,430.40 = 300,691,100.40 : x
  2. Step 2: Convert to fraction form
    990,784,953.60/1,486,177,430.40 = 300,691,100.40/x
  3. Step 3: Cross multiply
    990,784,953.60x = 1,486,177,430.40 × 300,691,100.40
  4. Step 4: Simplify right side
    990,784,953.60x = 446,880,326,936,620,416
  5. Step 5: Solve for x
    x = 446,880,326,936,620,416/990,784,953.60
  6. Step 6: Final answer
    x = 451,036,650.60

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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.