Home / 712,500,120.64-1,067,836,886.24-619,999,469.12

Finding the Fourth Proportional to 712,500,120.64, 1,067,836,886.24 and 619,999,469.12

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Solution

The fourth proportional to 712,500,120.64, 1,067,836,886.24 and 619,999,469.12 is: 929,204,477.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,500,120.64 : 1,067,836,886.24 = 619,999,469.12 : x
  2. Step 2: Convert to fraction form
    712,500,120.64/1,067,836,886.24 = 619,999,469.12/x
  3. Step 3: Cross multiply
    712,500,120.64x = 1,067,836,886.24 × 619,999,469.12
  4. Step 4: Simplify right side
    712,500,120.64x = 662,058,302,575,553,792
  5. Step 5: Solve for x
    x = 662,058,302,575,553,792/712,500,120.64
  6. Step 6: Final answer
    x = 929,204,477.86

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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.