Home / 783,911,019.80-1,081,788,622.62-431,479,475.48

Finding the Fourth Proportional to 783,911,019.80, 1,081,788,622.62 and 431,479,475.48

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Solution

The fourth proportional to 783,911,019.80, 1,081,788,622.62 and 431,479,475.48 is: 595,436,950.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,911,019.80 : 1,081,788,622.62 = 431,479,475.48 : x
  2. Step 2: Convert to fraction form
    783,911,019.80/1,081,788,622.62 = 431,479,475.48/x
  3. Step 3: Cross multiply
    783,911,019.80x = 1,081,788,622.62 × 431,479,475.48
  4. Step 4: Simplify right side
    783,911,019.80x = 466,769,587,468,309,248
  5. Step 5: Solve for x
    x = 466,769,587,468,309,248/783,911,019.80
  6. Step 6: Final answer
    x = 595,436,950.98

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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.