Home / 379,835,999.20-569,753,998.80-346,579,602.40

Finding the Fourth Proportional to 379,835,999.20, 569,753,998.80 and 346,579,602.40

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Solution

The fourth proportional to 379,835,999.20, 569,753,998.80 and 346,579,602.40 is: 519,869,403.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,835,999.20 : 569,753,998.80 = 346,579,602.40 : x
  2. Step 2: Convert to fraction form
    379,835,999.20/569,753,998.80 = 346,579,602.40/x
  3. Step 3: Cross multiply
    379,835,999.20x = 569,753,998.80 × 346,579,602.40
  4. Step 4: Simplify right side
    379,835,999.20x = 197,465,114,369,914,048
  5. Step 5: Solve for x
    x = 197,465,114,369,914,048/379,835,999.20
  6. Step 6: Final answer
    x = 519,869,403.60

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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.