Home / 30,766,142.80-42,456,933.06-16,827,898.36

Finding the Fourth Proportional to 30,766,142.80, 42,456,933.06 and 16,827,898.36

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Solution

The fourth proportional to 30,766,142.80, 42,456,933.06 and 16,827,898.36 is: 23,222,311.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,766,142.80 : 42,456,933.06 = 16,827,898.36 : x
  2. Step 2: Convert to fraction form
    30,766,142.80/42,456,933.06 = 16,827,898.36/x
  3. Step 3: Cross multiply
    30,766,142.80x = 42,456,933.06 × 16,827,898.36
  4. Step 4: Simplify right side
    30,766,142.80x = 714,460,954,211,003.75
  5. Step 5: Solve for x
    x = 714,460,954,211,003.75/30,766,142.80
  6. Step 6: Final answer
    x = 23,222,311.58

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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.