Home / 72,509,141.80-108,763,712.70-29,379,752.20

Finding the Fourth Proportional to 72,509,141.80, 108,763,712.70 and 29,379,752.20

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Solution

The fourth proportional to 72,509,141.80, 108,763,712.70 and 29,379,752.20 is: 44,069,628.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,509,141.80 : 108,763,712.70 = 29,379,752.20 : x
  2. Step 2: Convert to fraction form
    72,509,141.80/108,763,712.70 = 29,379,752.20/x
  3. Step 3: Cross multiply
    72,509,141.80x = 108,763,712.70 × 29,379,752.20
  4. Step 4: Simplify right side
    72,509,141.80x = 3,195,450,927,477,993
  5. Step 5: Solve for x
    x = 3,195,450,927,477,993/72,509,141.80
  6. Step 6: Final answer
    x = 44,069,628.30

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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.