Home / 402,495,356.88-555,445,473.48-228,664,639.44

Finding the Fourth Proportional to 402,495,356.88, 555,445,473.48 and 228,664,639.44

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Solution

The fourth proportional to 402,495,356.88, 555,445,473.48 and 228,664,639.44 is: 315,558,271.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,495,356.88 : 555,445,473.48 = 228,664,639.44 : x
  2. Step 2: Convert to fraction form
    402,495,356.88/555,445,473.48 = 228,664,639.44/x
  3. Step 3: Cross multiply
    402,495,356.88x = 555,445,473.48 × 228,664,639.44
  4. Step 4: Simplify right side
    402,495,356.88x = 127,010,738,921,884,288
  5. Step 5: Solve for x
    x = 127,010,738,921,884,288/402,495,356.88
  6. Step 6: Final answer
    x = 315,558,271.05

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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.