Home / 299,890,006.40-449,835,009.60-239,423,830.40

Finding the Fourth Proportional to 299,890,006.40, 449,835,009.60 and 239,423,830.40

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Solution

The fourth proportional to 299,890,006.40, 449,835,009.60 and 239,423,830.40 is: 359,135,745.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,890,006.40 : 449,835,009.60 = 239,423,830.40 : x
  2. Step 2: Convert to fraction form
    299,890,006.40/449,835,009.60 = 239,423,830.40/x
  3. Step 3: Cross multiply
    299,890,006.40x = 449,835,009.60 × 239,423,830.40
  4. Step 4: Simplify right side
    299,890,006.40x = 107,701,221,046,452,784
  5. Step 5: Solve for x
    x = 107,701,221,046,452,784/299,890,006.40
  6. Step 6: Final answer
    x = 359,135,745.60

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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.