Home / 84,462,639.60-126,945,901.80-82,950,985.20

Finding the Fourth Proportional to 84,462,639.60, 126,945,901.80 and 82,950,985.20

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Solution

The fourth proportional to 84,462,639.60, 126,945,901.80 and 82,950,985.20 is: 124,673,911.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,462,639.60 : 126,945,901.80 = 82,950,985.20 : x
  2. Step 2: Convert to fraction form
    84,462,639.60/126,945,901.80 = 82,950,985.20/x
  3. Step 3: Cross multiply
    84,462,639.60x = 126,945,901.80 × 82,950,985.20
  4. Step 4: Simplify right side
    84,462,639.60x = 10,530,287,621,412,454
  5. Step 5: Solve for x
    x = 10,530,287,621,412,454/84,462,639.60
  6. Step 6: Final answer
    x = 124,673,911.11

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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.