Home / 477,189,633.90-715,777,248.09-214,688,815.38

Finding the Fourth Proportional to 477,189,633.90, 715,777,248.09 and 214,688,815.38

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Solution

The fourth proportional to 477,189,633.90, 715,777,248.09 and 214,688,815.38 is: 322,029,982.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,189,633.90 : 715,777,248.09 = 214,688,815.38 : x
  2. Step 2: Convert to fraction form
    477,189,633.90/715,777,248.09 = 214,688,815.38/x
  3. Step 3: Cross multiply
    477,189,633.90x = 715,777,248.09 × 214,688,815.38
  4. Step 4: Simplify right side
    477,189,633.90x = 153,669,369,468,398,464
  5. Step 5: Solve for x
    x = 153,669,369,468,398,464/477,189,633.90
  6. Step 6: Final answer
    x = 322,029,982.53

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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.