Home / 510,256,001.80-765,384,002.70-408,219,329.80

Finding the Fourth Proportional to 510,256,001.80, 765,384,002.70 and 408,219,329.80

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Solution

The fourth proportional to 510,256,001.80, 765,384,002.70 and 408,219,329.80 is: 612,328,994.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,256,001.80 : 765,384,002.70 = 408,219,329.80 : x
  2. Step 2: Convert to fraction form
    510,256,001.80/765,384,002.70 = 408,219,329.80/x
  3. Step 3: Cross multiply
    510,256,001.80x = 765,384,002.70 × 408,219,329.80
  4. Step 4: Simplify right side
    510,256,001.80x = 312,444,544,621,835,392
  5. Step 5: Solve for x
    x = 312,444,544,621,835,392/510,256,001.80
  6. Step 6: Final answer
    x = 612,328,994.70

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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.