Home / 509,328,045.60-763,992,068.40-218,145,616.80

Finding the Fourth Proportional to 509,328,045.60, 763,992,068.40 and 218,145,616.80

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Solution

The fourth proportional to 509,328,045.60, 763,992,068.40 and 218,145,616.80 is: 327,218,425.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,328,045.60 : 763,992,068.40 = 218,145,616.80 : x
  2. Step 2: Convert to fraction form
    509,328,045.60/763,992,068.40 = 218,145,616.80/x
  3. Step 3: Cross multiply
    509,328,045.60x = 763,992,068.40 × 218,145,616.80
  4. Step 4: Simplify right side
    509,328,045.60x = 166,661,520,991,425,792
  5. Step 5: Solve for x
    x = 166,661,520,991,425,792/509,328,045.60
  6. Step 6: Final answer
    x = 327,218,425.20

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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.