Home / 706,828,849.21-1,060,315,678.64-270,496,513.45

Finding the Fourth Proportional to 706,828,849.21, 1,060,315,678.64 and 270,496,513.45

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Solution

The fourth proportional to 706,828,849.21, 1,060,315,678.64 and 270,496,513.45 is: 405,772,478.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,828,849.21 : 1,060,315,678.64 = 270,496,513.45 : x
  2. Step 2: Convert to fraction form
    706,828,849.21/1,060,315,678.64 = 270,496,513.45/x
  3. Step 3: Cross multiply
    706,828,849.21x = 1,060,315,678.64 × 270,496,513.45
  4. Step 4: Simplify right side
    706,828,849.21x = 286,811,694,227,138,144
  5. Step 5: Solve for x
    x = 286,811,694,227,138,144/706,828,849.21
  6. Step 6: Final answer
    x = 405,772,478.79

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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.