Home / 420,276,188.70-628,713,671.85-369,257,852.70

Finding the Fourth Proportional to 420,276,188.70, 628,713,671.85 and 369,257,852.70

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Solution

The fourth proportional to 420,276,188.70, 628,713,671.85 and 369,257,852.70 is: 552,392,609.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,276,188.70 : 628,713,671.85 = 369,257,852.70 : x
  2. Step 2: Convert to fraction form
    420,276,188.70/628,713,671.85 = 369,257,852.70/x
  3. Step 3: Cross multiply
    420,276,188.70x = 628,713,671.85 × 369,257,852.70
  4. Step 4: Simplify right side
    420,276,188.70x = 232,157,460,430,463,424
  5. Step 5: Solve for x
    x = 232,157,460,430,463,424/420,276,188.70
  6. Step 6: Final answer
    x = 552,392,609.13

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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.