Home / 435,620,405.20-653,430,607.80-206,037,893.20

Finding the Fourth Proportional to 435,620,405.20, 653,430,607.80 and 206,037,893.20

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Solution

The fourth proportional to 435,620,405.20, 653,430,607.80 and 206,037,893.20 is: 309,056,839.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,620,405.20 : 653,430,607.80 = 206,037,893.20 : x
  2. Step 2: Convert to fraction form
    435,620,405.20/653,430,607.80 = 206,037,893.20/x
  3. Step 3: Cross multiply
    435,620,405.20x = 653,430,607.80 × 206,037,893.20
  4. Step 4: Simplify right side
    435,620,405.20x = 134,631,465,783,507,472
  5. Step 5: Solve for x
    x = 134,631,465,783,507,472/435,620,405.20
  6. Step 6: Final answer
    x = 309,056,839.80

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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.