Home / 316,579,462.40-474,869,193.60-285,338,604.80

Finding the Fourth Proportional to 316,579,462.40, 474,869,193.60 and 285,338,604.80

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Solution

The fourth proportional to 316,579,462.40, 474,869,193.60 and 285,338,604.80 is: 428,007,907.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,579,462.40 : 474,869,193.60 = 285,338,604.80 : x
  2. Step 2: Convert to fraction form
    316,579,462.40/474,869,193.60 = 285,338,604.80/x
  3. Step 3: Cross multiply
    316,579,462.40x = 474,869,193.60 × 285,338,604.80
  4. Step 4: Simplify right side
    316,579,462.40x = 135,498,513,164,325,104
  5. Step 5: Solve for x
    x = 135,498,513,164,325,104/316,579,462.40
  6. Step 6: Final answer
    x = 428,007,907.20

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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.