Home / 561,259,561.72-774,543,206.88-310,380,929.44

Finding the Fourth Proportional to 561,259,561.72, 774,543,206.88 and 310,380,929.44

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Solution

The fourth proportional to 561,259,561.72, 774,543,206.88 and 310,380,929.44 is: 428,328,454.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,259,561.72 : 774,543,206.88 = 310,380,929.44 : x
  2. Step 2: Convert to fraction form
    561,259,561.72/774,543,206.88 = 310,380,929.44/x
  3. Step 3: Cross multiply
    561,259,561.72x = 774,543,206.88 × 310,380,929.44
  4. Step 4: Simplify right side
    561,259,561.72x = 240,403,440,442,852,608
  5. Step 5: Solve for x
    x = 240,403,440,442,852,608/561,259,561.72
  6. Step 6: Final answer
    x = 428,328,454.14

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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.