Home / 205,115,312.40-307,872,034.20-102,994,659.60

Finding the Fourth Proportional to 205,115,312.40, 307,872,034.20 and 102,994,659.60

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Solution

The fourth proportional to 205,115,312.40, 307,872,034.20 and 102,994,659.60 is: 154,591,946.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,115,312.40 : 307,872,034.20 = 102,994,659.60 : x
  2. Step 2: Convert to fraction form
    205,115,312.40/307,872,034.20 = 102,994,659.60/x
  3. Step 3: Cross multiply
    205,115,312.40x = 307,872,034.20 × 102,994,659.60
  4. Step 4: Simplify right side
    205,115,312.40x = 31,709,175,362,788,556
  5. Step 5: Solve for x
    x = 31,709,175,362,788,556/205,115,312.40
  6. Step 6: Final answer
    x = 154,591,946.31

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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.