Home / 420,137,625.60-629,781,285.60-247,525,588.80

Finding the Fourth Proportional to 420,137,625.60, 629,781,285.60 and 247,525,588.80

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Solution

The fourth proportional to 420,137,625.60, 629,781,285.60 and 247,525,588.80 is: 371,037,902.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,137,625.60 : 629,781,285.60 = 247,525,588.80 : x
  2. Step 2: Convert to fraction form
    420,137,625.60/629,781,285.60 = 247,525,588.80/x
  3. Step 3: Cross multiply
    420,137,625.60x = 629,781,285.60 × 247,525,588.80
  4. Step 4: Simplify right side
    420,137,625.60x = 155,886,983,533,360,960
  5. Step 5: Solve for x
    x = 155,886,983,533,360,960/420,137,625.60
  6. Step 6: Final answer
    x = 371,037,902.90

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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.