Home / 915,552,005.20-1,373,328,007.80-815,782,814.80

Finding the Fourth Proportional to 915,552,005.20, 1,373,328,007.80 and 815,782,814.80

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Solution

The fourth proportional to 915,552,005.20, 1,373,328,007.80 and 815,782,814.80 is: 1,223,674,222.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,552,005.20 : 1,373,328,007.80 = 815,782,814.80 : x
  2. Step 2: Convert to fraction form
    915,552,005.20/1,373,328,007.80 = 815,782,814.80/x
  3. Step 3: Cross multiply
    915,552,005.20x = 1,373,328,007.80 × 815,782,814.80
  4. Step 4: Simplify right side
    915,552,005.20x = 1,120,337,387,846,760,192
  5. Step 5: Solve for x
    x = 1,120,337,387,846,760,192/915,552,005.20
  6. Step 6: Final answer
    x = 1,223,674,222.20

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1.5x scale

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.