Home / 783,911,047.80-1,081,788,661.26-431,479,503.48

Finding the Fourth Proportional to 783,911,047.80, 1,081,788,661.26 and 431,479,503.48

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Solution

The fourth proportional to 783,911,047.80, 1,081,788,661.26 and 431,479,503.48 is: 595,436,989.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,911,047.80 : 1,081,788,661.26 = 431,479,503.48 : x
  2. Step 2: Convert to fraction form
    783,911,047.80/1,081,788,661.26 = 431,479,503.48/x
  3. Step 3: Cross multiply
    783,911,047.80x = 1,081,788,661.26 × 431,479,503.48
  4. Step 4: Simplify right side
    783,911,047.80x = 466,769,634,430,758,720
  5. Step 5: Solve for x
    x = 466,769,634,430,758,720/783,911,047.80
  6. Step 6: Final answer
    x = 595,436,989.62

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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.