Home / 402,410,675.80-603,616,013.70-218,744,666.20

Finding the Fourth Proportional to 402,410,675.80, 603,616,013.70 and 218,744,666.20

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Solution

The fourth proportional to 402,410,675.80, 603,616,013.70 and 218,744,666.20 is: 328,116,999.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,410,675.80 : 603,616,013.70 = 218,744,666.20 : x
  2. Step 2: Convert to fraction form
    402,410,675.80/603,616,013.70 = 218,744,666.20/x
  3. Step 3: Cross multiply
    402,410,675.80x = 603,616,013.70 × 218,744,666.20
  4. Step 4: Simplify right side
    402,410,675.80x = 132,037,783,429,781,136
  5. Step 5: Solve for x
    x = 132,037,783,429,781,136/402,410,675.80
  6. Step 6: Final answer
    x = 328,116,999.30

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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.