Home / 874,579,431.20-1,312,373,031.60-329,712,000.80

Finding the Fourth Proportional to 874,579,431.20, 1,312,373,031.60 and 329,712,000.80

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Solution

The fourth proportional to 874,579,431.20, 1,312,373,031.60 and 329,712,000.80 is: 494,757,963.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,579,431.20 : 1,312,373,031.60 = 329,712,000.80 : x
  2. Step 2: Convert to fraction form
    874,579,431.20/1,312,373,031.60 = 329,712,000.80/x
  3. Step 3: Cross multiply
    874,579,431.20x = 1,312,373,031.60 × 329,712,000.80
  4. Step 4: Simplify right side
    874,579,431.20x = 432,705,138,044,797,632
  5. Step 5: Solve for x
    x = 432,705,138,044,797,632/874,579,431.20
  6. Step 6: Final answer
    x = 494,757,963.21

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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.