Home / 402,495,365.40-555,445,485.20-228,664,647.96

Finding the Fourth Proportional to 402,495,365.40, 555,445,485.20 and 228,664,647.96

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Solution

The fourth proportional to 402,495,365.40, 555,445,485.20 and 228,664,647.96 is: 315,558,282.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,495,365.40 : 555,445,485.20 = 228,664,647.96 : x
  2. Step 2: Convert to fraction form
    402,495,365.40/555,445,485.20 = 228,664,647.96/x
  3. Step 3: Cross multiply
    402,495,365.40x = 555,445,485.20 × 228,664,647.96
  4. Step 4: Simplify right side
    402,495,365.40x = 127,010,746,334,229,408
  5. Step 5: Solve for x
    x = 127,010,746,334,229,408/402,495,365.40
  6. Step 6: Final answer
    x = 315,558,282.78

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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.