Home / 252,019,430.10-378,029,145.15-208,972,709.10

Finding the Fourth Proportional to 252,019,430.10, 378,029,145.15 and 208,972,709.10

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Solution

The fourth proportional to 252,019,430.10, 378,029,145.15 and 208,972,709.10 is: 313,459,063.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,019,430.10 : 378,029,145.15 = 208,972,709.10 : x
  2. Step 2: Convert to fraction form
    252,019,430.10/378,029,145.15 = 208,972,709.10/x
  3. Step 3: Cross multiply
    252,019,430.10x = 378,029,145.15 × 208,972,709.10
  4. Step 4: Simplify right side
    252,019,430.10x = 78,997,774,580,752,624
  5. Step 5: Solve for x
    x = 78,997,774,580,752,624/252,019,430.10
  6. Step 6: Final answer
    x = 313,459,063.65

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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.