Home / 380,648,002.15-525,294,242.97-215,635,571.65

Finding the Fourth Proportional to 380,648,002.15, 525,294,242.97 and 215,635,571.65

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Solution

The fourth proportional to 380,648,002.15, 525,294,242.97 and 215,635,571.65 is: 297,577,088.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,648,002.15 : 525,294,242.97 = 215,635,571.65 : x
  2. Step 2: Convert to fraction form
    380,648,002.15/525,294,242.97 = 215,635,571.65/x
  3. Step 3: Cross multiply
    380,648,002.15x = 525,294,242.97 × 215,635,571.65
  4. Step 4: Simplify right side
    380,648,002.15x = 113,272,124,367,137,936
  5. Step 5: Solve for x
    x = 113,272,124,367,137,936/380,648,002.15
  6. Step 6: Final answer
    x = 297,577,088.88

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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.