Home / 425,823,250.80-638,804,950.92-130,710,961.20

Finding the Fourth Proportional to 425,823,250.80, 638,804,950.92 and 130,710,961.20

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Solution

The fourth proportional to 425,823,250.80, 638,804,950.92 and 130,710,961.20 is: 196,087,951.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,823,250.80 : 638,804,950.92 = 130,710,961.20 : x
  2. Step 2: Convert to fraction form
    425,823,250.80/638,804,950.92 = 130,710,961.20/x
  3. Step 3: Cross multiply
    425,823,250.80x = 638,804,950.92 × 130,710,961.20
  4. Step 4: Simplify right side
    425,823,250.80x = 83,498,809,154,072,016
  5. Step 5: Solve for x
    x = 83,498,809,154,072,016/425,823,250.80
  6. Step 6: Final answer
    x = 196,087,951.98

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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.