Home / 820,187,025.83-1,131,858,095.48-448,909,057.20

Finding the Fourth Proportional to 820,187,025.83, 1,131,858,095.48 and 448,909,057.20

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Solution

The fourth proportional to 820,187,025.83, 1,131,858,095.48 and 448,909,057.20 is: 619,494,498.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,187,025.83 : 1,131,858,095.48 = 448,909,057.20 : x
  2. Step 2: Convert to fraction form
    820,187,025.83/1,131,858,095.48 = 448,909,057.20/x
  3. Step 3: Cross multiply
    820,187,025.83x = 1,131,858,095.48 × 448,909,057.20
  4. Step 4: Simplify right side
    820,187,025.83x = 508,101,350,526,114,368
  5. Step 5: Solve for x
    x = 508,101,350,526,114,368/820,187,025.83
  6. Step 6: Final answer
    x = 619,494,498.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.