Home / 380,202,116.85-524,588,985.18-215,189,686.35

Finding the Fourth Proportional to 380,202,116.85, 524,588,985.18 and 215,189,686.35

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Solution

The fourth proportional to 380,202,116.85, 524,588,985.18 and 215,189,686.35 is: 296,910,864.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,202,116.85 : 524,588,985.18 = 215,189,686.35 : x
  2. Step 2: Convert to fraction form
    380,202,116.85/524,588,985.18 = 215,189,686.35/x
  3. Step 3: Cross multiply
    380,202,116.85x = 524,588,985.18 × 215,189,686.35
  4. Step 4: Simplify right side
    380,202,116.85x = 112,886,139,183,548,992
  5. Step 5: Solve for x
    x = 112,886,139,183,548,992/380,202,116.85
  6. Step 6: Final answer
    x = 296,910,864.46

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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.