Home / 154,319,055.30-213,137,040.75-101,631,288.64

Finding the Fourth Proportional to 154,319,055.30, 213,137,040.75 and 101,631,288.64

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Solution

The fourth proportional to 154,319,055.30, 213,137,040.75 and 101,631,288.64 is: 140,367,578.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,319,055.30 : 213,137,040.75 = 101,631,288.64 : x
  2. Step 2: Convert to fraction form
    154,319,055.30/213,137,040.75 = 101,631,288.64/x
  3. Step 3: Cross multiply
    154,319,055.30x = 213,137,040.75 × 101,631,288.64
  4. Step 4: Simplify right side
    154,319,055.30x = 21,661,392,108,338,692
  5. Step 5: Solve for x
    x = 21,661,392,108,338,692/154,319,055.30
  6. Step 6: Final answer
    x = 140,367,578.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.