Home / 486,562,666.18-671,421,620.74-285,627,699.27

Finding the Fourth Proportional to 486,562,666.18, 671,421,620.74 and 285,627,699.27

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Solution

The fourth proportional to 486,562,666.18, 671,421,620.74 and 285,627,699.27 is: 394,145,761.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,562,666.18 : 671,421,620.74 = 285,627,699.27 : x
  2. Step 2: Convert to fraction form
    486,562,666.18/671,421,620.74 = 285,627,699.27/x
  3. Step 3: Cross multiply
    486,562,666.18x = 671,421,620.74 × 285,627,699.27
  4. Step 4: Simplify right side
    486,562,666.18x = 191,776,612,769,231,456
  5. Step 5: Solve for x
    x = 191,776,612,769,231,456/486,562,666.18
  6. Step 6: Final answer
    x = 394,145,761.89

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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.