Home / 291,077,387.20-436,616,080.80-192,867,090.40

Finding the Fourth Proportional to 291,077,387.20, 436,616,080.80 and 192,867,090.40

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Solution

The fourth proportional to 291,077,387.20, 436,616,080.80 and 192,867,090.40 is: 289,300,635.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,077,387.20 : 436,616,080.80 = 192,867,090.40 : x
  2. Step 2: Convert to fraction form
    291,077,387.20/436,616,080.80 = 192,867,090.40/x
  3. Step 3: Cross multiply
    291,077,387.20x = 436,616,080.80 × 192,867,090.40
  4. Step 4: Simplify right side
    291,077,387.20x = 84,208,873,125,747,312
  5. Step 5: Solve for x
    x = 84,208,873,125,747,312/291,077,387.20
  6. Step 6: Final answer
    x = 289,300,635.60

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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.