Home / 30,262,798.51-41,713,875.66-20,469,671.31

Finding the Fourth Proportional to 30,262,798.51, 41,713,875.66 and 20,469,671.31

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Solution

The fourth proportional to 30,262,798.51, 41,713,875.66 and 20,469,671.31 is: 28,215,147.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,262,798.51 : 41,713,875.66 = 20,469,671.31 : x
  2. Step 2: Convert to fraction form
    30,262,798.51/41,713,875.66 = 20,469,671.31/x
  3. Step 3: Cross multiply
    30,262,798.51x = 41,713,875.66 × 20,469,671.31
  4. Step 4: Simplify right side
    30,262,798.51x = 853,869,323,826,409.12
  5. Step 5: Solve for x
    x = 853,869,323,826,409.12/30,262,798.51
  6. Step 6: Final answer
    x = 28,215,147.50

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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.