Home / 674,325,813.60-1,011,488,720.40-189,651,621.60

Finding the Fourth Proportional to 674,325,813.60, 1,011,488,720.40 and 189,651,621.60

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Solution

The fourth proportional to 674,325,813.60, 1,011,488,720.40 and 189,651,621.60 is: 284,477,432.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,325,813.60 : 1,011,488,720.40 = 189,651,621.60 : x
  2. Step 2: Convert to fraction form
    674,325,813.60/1,011,488,720.40 = 189,651,621.60/x
  3. Step 3: Cross multiply
    674,325,813.60x = 1,011,488,720.40 × 189,651,621.60
  4. Step 4: Simplify right side
    674,325,813.60x = 191,830,476,053,968,992
  5. Step 5: Solve for x
    x = 191,830,476,053,968,992/674,325,813.60
  6. Step 6: Final answer
    x = 284,477,432.40

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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.