Home / 20,881,156.77-28,819,459.65-12,179,329.13

Finding the Fourth Proportional to 20,881,156.77, 28,819,459.65 and 12,179,329.13

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Solution

The fourth proportional to 20,881,156.77, 28,819,459.65 and 12,179,329.13 is: 16,809,494.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,881,156.77 : 28,819,459.65 = 12,179,329.13 : x
  2. Step 2: Convert to fraction form
    20,881,156.77/28,819,459.65 = 12,179,329.13/x
  3. Step 3: Cross multiply
    20,881,156.77x = 28,819,459.65 × 12,179,329.13
  4. Step 4: Simplify right side
    20,881,156.77x = 351,001,684,426,104.62
  5. Step 5: Solve for x
    x = 351,001,684,426,104.62/20,881,156.77
  6. Step 6: Final answer
    x = 16,809,494.24

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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.