Home / 345,084,509.60-517,883,846.40-253,205,669.04

Finding the Fourth Proportional to 345,084,509.60, 517,883,846.40 and 253,205,669.04

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Solution

The fourth proportional to 345,084,509.60, 517,883,846.40 and 253,205,669.04 is: 379,997,137.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,084,509.60 : 517,883,846.40 = 253,205,669.04 : x
  2. Step 2: Convert to fraction form
    345,084,509.60/517,883,846.40 = 253,205,669.04/x
  3. Step 3: Cross multiply
    345,084,509.60x = 517,883,846.40 × 253,205,669.04
  4. Step 4: Simplify right side
    345,084,509.60x = 131,131,125,812,720,592
  5. Step 5: Solve for x
    x = 131,131,125,812,720,592/345,084,509.60
  6. Step 6: Final answer
    x = 379,997,137.41

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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.