Home / 402,281,965.72-555,099,305.39-232,765,343.11

Finding the Fourth Proportional to 402,281,965.72, 555,099,305.39 and 232,765,343.11

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Solution

The fourth proportional to 402,281,965.72, 555,099,305.39 and 232,765,343.11 is: 321,187,354.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,281,965.72 : 555,099,305.39 = 232,765,343.11 : x
  2. Step 2: Convert to fraction form
    402,281,965.72/555,099,305.39 = 232,765,343.11/x
  3. Step 3: Cross multiply
    402,281,965.72x = 555,099,305.39 × 232,765,343.11
  4. Step 4: Simplify right side
    402,281,965.72x = 129,207,880,276,450,512
  5. Step 5: Solve for x
    x = 129,207,880,276,450,512/402,281,965.72
  6. Step 6: Final answer
    x = 321,187,354.36

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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.