Home / 579,982,678.96-800,376,052.44-315,666,567.28

Finding the Fourth Proportional to 579,982,678.96, 800,376,052.44 and 315,666,567.28

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Solution

The fourth proportional to 579,982,678.96, 800,376,052.44 and 315,666,567.28 is: 435,619,838.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,982,678.96 : 800,376,052.44 = 315,666,567.28 : x
  2. Step 2: Convert to fraction form
    579,982,678.96/800,376,052.44 = 315,666,567.28/x
  3. Step 3: Cross multiply
    579,982,678.96x = 800,376,052.44 × 315,666,567.28
  4. Step 4: Simplify right side
    579,982,678.96x = 252,651,961,006,852,064
  5. Step 5: Solve for x
    x = 252,651,961,006,852,064/579,982,678.96
  6. Step 6: Final answer
    x = 435,619,838.61

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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.