Home / 20,464,059.60-30,696,089.40-12,279,868.20

Finding the Fourth Proportional to 20,464,059.60, 30,696,089.40 and 12,279,868.20

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Solution

The fourth proportional to 20,464,059.60, 30,696,089.40 and 12,279,868.20 is: 18,419,802.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,464,059.60 : 30,696,089.40 = 12,279,868.20 : x
  2. Step 2: Convert to fraction form
    20,464,059.60/30,696,089.40 = 12,279,868.20/x
  3. Step 3: Cross multiply
    20,464,059.60x = 30,696,089.40 × 12,279,868.20
  4. Step 4: Simplify right side
    20,464,059.60x = 376,943,932,087,417.06
  5. Step 5: Solve for x
    x = 376,943,932,087,417.06/20,464,059.60
  6. Step 6: Final answer
    x = 18,419,802.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.