Home / 624,132,005.40-936,198,008.10-318,021,989.40

Finding the Fourth Proportional to 624,132,005.40, 936,198,008.10 and 318,021,989.40

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Solution

The fourth proportional to 624,132,005.40, 936,198,008.10 and 318,021,989.40 is: 477,032,984.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,132,005.40 : 936,198,008.10 = 318,021,989.40 : x
  2. Step 2: Convert to fraction form
    624,132,005.40/936,198,008.10 = 318,021,989.40/x
  3. Step 3: Cross multiply
    624,132,005.40x = 936,198,008.10 × 318,021,989.40
  4. Step 4: Simplify right side
    624,132,005.40x = 297,731,553,008,279,296
  5. Step 5: Solve for x
    x = 297,731,553,008,279,296/624,132,005.40
  6. Step 6: Final answer
    x = 477,032,984.10

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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.