Home / 380,503,666.20-525,062,988.54-210,962,427.96

Finding the Fourth Proportional to 380,503,666.20, 525,062,988.54 and 210,962,427.96

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Solution

The fourth proportional to 380,503,666.20, 525,062,988.54 and 210,962,427.96 is: 291,110,369.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,503,666.20 : 525,062,988.54 = 210,962,427.96 : x
  2. Step 2: Convert to fraction form
    380,503,666.20/525,062,988.54 = 210,962,427.96/x
  3. Step 3: Cross multiply
    380,503,666.20x = 525,062,988.54 × 210,962,427.96
  4. Step 4: Simplify right side
    380,503,666.20x = 110,768,562,894,332,064
  5. Step 5: Solve for x
    x = 110,768,562,894,332,064/380,503,666.20
  6. Step 6: Final answer
    x = 291,110,369.58

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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.