Home / 339,912,037.80-509,868,056.70-313,835,999.40

Finding the Fourth Proportional to 339,912,037.80, 509,868,056.70 and 313,835,999.40

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Solution

The fourth proportional to 339,912,037.80, 509,868,056.70 and 313,835,999.40 is: 470,753,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,912,037.80 : 509,868,056.70 = 313,835,999.40 : x
  2. Step 2: Convert to fraction form
    339,912,037.80/509,868,056.70 = 313,835,999.40/x
  3. Step 3: Cross multiply
    339,912,037.80x = 509,868,056.70 × 313,835,999.40
  4. Step 4: Simplify right side
    339,912,037.80x = 160,014,951,136,580,352
  5. Step 5: Solve for x
    x = 160,014,951,136,580,352/339,912,037.80
  6. Step 6: Final answer
    x = 470,753,999.10

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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.