Home / 429,142,778.36-592,426,970.52-287,963,486.54

Finding the Fourth Proportional to 429,142,778.36, 592,426,970.52 and 287,963,486.54

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Solution

The fourth proportional to 429,142,778.36, 592,426,970.52 and 287,963,486.54 is: 397,530,482.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,142,778.36 : 592,426,970.52 = 287,963,486.54 : x
  2. Step 2: Convert to fraction form
    429,142,778.36/592,426,970.52 = 287,963,486.54/x
  3. Step 3: Cross multiply
    429,142,778.36x = 592,426,970.52 × 287,963,486.54
  4. Step 4: Simplify right side
    429,142,778.36x = 170,597,335,951,268,992
  5. Step 5: Solve for x
    x = 170,597,335,951,268,992/429,142,778.36
  6. Step 6: Final answer
    x = 397,530,482.99

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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.