Home / 918,256,893.20-1,377,385,339.80-335,990,013.20

Finding the Fourth Proportional to 918,256,893.20, 1,377,385,339.80 and 335,990,013.20

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Solution

The fourth proportional to 918,256,893.20, 1,377,385,339.80 and 335,990,013.20 is: 503,985,019.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,256,893.20 : 1,377,385,339.80 = 335,990,013.20 : x
  2. Step 2: Convert to fraction form
    918,256,893.20/1,377,385,339.80 = 335,990,013.20/x
  3. Step 3: Cross multiply
    918,256,893.20x = 1,377,385,339.80 × 335,990,013.20
  4. Step 4: Simplify right side
    918,256,893.20x = 462,787,718,500,888,448
  5. Step 5: Solve for x
    x = 462,787,718,500,888,448/918,256,893.20
  6. Step 6: Final answer
    x = 503,985,019.80

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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.