Home / 279,285,415.20-419,117,079.60-125,852,493.60

Finding the Fourth Proportional to 279,285,415.20, 419,117,079.60 and 125,852,493.60

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Solution

The fourth proportional to 279,285,415.20, 419,117,079.60 and 125,852,493.60 is: 188,863,888.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,285,415.20 : 419,117,079.60 = 125,852,493.60 : x
  2. Step 2: Convert to fraction form
    279,285,415.20/419,117,079.60 = 125,852,493.60/x
  3. Step 3: Cross multiply
    279,285,415.20x = 419,117,079.60 × 125,852,493.60
  4. Step 4: Simplify right side
    279,285,415.20x = 52,746,929,578,009,688
  5. Step 5: Solve for x
    x = 52,746,929,578,009,688/279,285,415.20
  6. Step 6: Final answer
    x = 188,863,888.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.