Home / 645,013,678.80-967,161,578-382,804,781.52

Finding the Fourth Proportional to 645,013,678.80, 967,161,578 and 382,804,781.52

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Solution

The fourth proportional to 645,013,678.80, 967,161,578 and 382,804,781.52 is: 573,994,147.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,013,678.80 : 967,161,578 = 382,804,781.52 : x
  2. Step 2: Convert to fraction form
    645,013,678.80/967,161,578 = 382,804,781.52/x
  3. Step 3: Cross multiply
    645,013,678.80x = 967,161,578 × 382,804,781.52
  4. Step 4: Simplify right side
    645,013,678.80x = 370,234,076,560,828,416
  5. Step 5: Solve for x
    x = 370,234,076,560,828,416/645,013,678.80
  6. Step 6: Final answer
    x = 573,994,147.30

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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.