Home / 728,285,632.55-1,092,246,586.10-285,718,511.53

Finding the Fourth Proportional to 728,285,632.55, 1,092,246,586.10 and 285,718,511.53

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Solution

The fourth proportional to 728,285,632.55, 1,092,246,586.10 and 285,718,511.53 is: 428,506,419.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,285,632.55 : 1,092,246,586.10 = 285,718,511.53 : x
  2. Step 2: Convert to fraction form
    728,285,632.55/1,092,246,586.10 = 285,718,511.53/x
  3. Step 3: Cross multiply
    728,285,632.55x = 1,092,246,586.10 × 285,718,511.53
  4. Step 4: Simplify right side
    728,285,632.55x = 312,075,068,806,838,464
  5. Step 5: Solve for x
    x = 312,075,068,806,838,464/728,285,632.55
  6. Step 6: Final answer
    x = 428,506,419.54

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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.