Home / 679,474,241.48-937,659,751.31-393,377,830.83

Finding the Fourth Proportional to 679,474,241.48, 937,659,751.31 and 393,377,830.83

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Solution

The fourth proportional to 679,474,241.48, 937,659,751.31 and 393,377,830.83 is: 542,852,894.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,474,241.48 : 937,659,751.31 = 393,377,830.83 : x
  2. Step 2: Convert to fraction form
    679,474,241.48/937,659,751.31 = 393,377,830.83/x
  3. Step 3: Cross multiply
    679,474,241.48x = 937,659,751.31 × 393,377,830.83
  4. Step 4: Simplify right side
    679,474,241.48x = 368,854,559,027,908,480
  5. Step 5: Solve for x
    x = 368,854,559,027,908,480/679,474,241.48
  6. Step 6: Final answer
    x = 542,852,894.94

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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.