Home / 1,329,698,859.20-1,994,548,288.80-409,455,623.60

Finding the Fourth Proportional to 1,329,698,859.20, 1,994,548,288.80 and 409,455,623.60

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Solution

The fourth proportional to 1,329,698,859.20, 1,994,548,288.80 and 409,455,623.60 is: 614,183,435.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,698,859.20 : 1,994,548,288.80 = 409,455,623.60 : x
  2. Step 2: Convert to fraction form
    1,329,698,859.20/1,994,548,288.80 = 409,455,623.60/x
  3. Step 3: Cross multiply
    1,329,698,859.20x = 1,994,548,288.80 × 409,455,623.60
  4. Step 4: Simplify right side
    1,329,698,859.20x = 816,679,013,390,916,864
  5. Step 5: Solve for x
    x = 816,679,013,390,916,864/1,329,698,859.20
  6. Step 6: Final answer
    x = 614,183,435.40

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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.