Home / 148,940,323.81-205,539,538.43-81,966,992.96

Finding the Fourth Proportional to 148,940,323.81, 205,539,538.43 and 81,966,992.96

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Solution

The fourth proportional to 148,940,323.81, 205,539,538.43 and 81,966,992.96 is: 113,115,491.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,940,323.81 : 205,539,538.43 = 81,966,992.96 : x
  2. Step 2: Convert to fraction form
    148,940,323.81/205,539,538.43 = 81,966,992.96/x
  3. Step 3: Cross multiply
    148,940,323.81x = 205,539,538.43 × 81,966,992.96
  4. Step 4: Simplify right side
    148,940,323.81x = 16,847,457,899,083,624
  5. Step 5: Solve for x
    x = 16,847,457,899,083,624/148,940,323.81
  6. Step 6: Final answer
    x = 113,115,491.28

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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.