Home / 72,291,439.73-99,763,920.08-39,253,081.36

Finding the Fourth Proportional to 72,291,439.73, 99,763,920.08 and 39,253,081.36

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Solution

The fourth proportional to 72,291,439.73, 99,763,920.08 and 39,253,081.36 is: 54,170,193.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,291,439.73 : 99,763,920.08 = 39,253,081.36 : x
  2. Step 2: Convert to fraction form
    72,291,439.73/99,763,920.08 = 39,253,081.36/x
  3. Step 3: Cross multiply
    72,291,439.73x = 99,763,920.08 × 39,253,081.36
  4. Step 4: Simplify right side
    72,291,439.73x = 3,916,041,271,802,157.50
  5. Step 5: Solve for x
    x = 3,916,041,271,802,157.50/72,291,439.73
  6. Step 6: Final answer
    x = 54,170,193.41

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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.