Home / 402,410,729.80-603,616,094.70-218,744,720.20

Finding the Fourth Proportional to 402,410,729.80, 603,616,094.70 and 218,744,720.20

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Solution

The fourth proportional to 402,410,729.80, 603,616,094.70 and 218,744,720.20 is: 328,117,080.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,410,729.80 : 603,616,094.70 = 218,744,720.20 : x
  2. Step 2: Convert to fraction form
    402,410,729.80/603,616,094.70 = 218,744,720.20/x
  3. Step 3: Cross multiply
    402,410,729.80x = 603,616,094.70 × 218,744,720.20
  4. Step 4: Simplify right side
    402,410,729.80x = 132,037,833,743,368,208
  5. Step 5: Solve for x
    x = 132,037,833,743,368,208/402,410,729.80
  6. Step 6: Final answer
    x = 328,117,080.30

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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.