Home / 81,651,628.80-122,477,443.20-56,142,460.80

Finding the Fourth Proportional to 81,651,628.80, 122,477,443.20 and 56,142,460.80

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Solution

The fourth proportional to 81,651,628.80, 122,477,443.20 and 56,142,460.80 is: 84,213,691.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,651,628.80 : 122,477,443.20 = 56,142,460.80 : x
  2. Step 2: Convert to fraction form
    81,651,628.80/122,477,443.20 = 56,142,460.80/x
  3. Step 3: Cross multiply
    81,651,628.80x = 122,477,443.20 × 56,142,460.80
  4. Step 4: Simplify right side
    81,651,628.80x = 6,876,185,053,740,226
  5. Step 5: Solve for x
    x = 6,876,185,053,740,226/81,651,628.80
  6. Step 6: Final answer
    x = 84,213,691.20

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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.