Home / 116,819,705.77-161,260,832.09-72,788,459.48

Finding the Fourth Proportional to 116,819,705.77, 161,260,832.09 and 72,788,459.48

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Solution

The fourth proportional to 116,819,705.77, 161,260,832.09 and 72,788,459.48 is: 100,479,002.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,819,705.77 : 161,260,832.09 = 72,788,459.48 : x
  2. Step 2: Convert to fraction form
    116,819,705.77/161,260,832.09 = 72,788,459.48/x
  3. Step 3: Cross multiply
    116,819,705.77x = 161,260,832.09 × 72,788,459.48
  4. Step 4: Simplify right side
    116,819,705.77x = 11,737,927,542,879,172
  5. Step 5: Solve for x
    x = 11,737,927,542,879,172/116,819,705.77
  6. Step 6: Final answer
    x = 100,479,002.80

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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.