Home / 783,911,028.30-1,081,788,634.35-431,479,483.98

Finding the Fourth Proportional to 783,911,028.30, 1,081,788,634.35 and 431,479,483.98

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Solution

The fourth proportional to 783,911,028.30, 1,081,788,634.35 and 431,479,483.98 is: 595,436,962.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,911,028.30 : 1,081,788,634.35 = 431,479,483.98 : x
  2. Step 2: Convert to fraction form
    783,911,028.30/1,081,788,634.35 = 431,479,483.98/x
  3. Step 3: Cross multiply
    783,911,028.30x = 1,081,788,634.35 × 431,479,483.98
  4. Step 4: Simplify right side
    783,911,028.30x = 466,769,601,724,766,912
  5. Step 5: Solve for x
    x = 466,769,601,724,766,912/783,911,028.30
  6. Step 6: Final answer
    x = 595,436,962.71

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Double scale
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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.