Home / 20,803,755.40-31,205,730.30-7,340,583.40

Finding the Fourth Proportional to 20,803,755.40, 31,205,730.30 and 7,340,583.40

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Solution

The fourth proportional to 20,803,755.40, 31,205,730.30 and 7,340,583.40 is: 11,010,909.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,803,755.40 : 31,205,730.30 = 7,340,583.40 : x
  2. Step 2: Convert to fraction form
    20,803,755.40/31,205,730.30 = 7,340,583.40/x
  3. Step 3: Cross multiply
    20,803,755.40x = 31,205,730.30 × 7,340,583.40
  4. Step 4: Simplify right side
    20,803,755.40x = 229,068,265,825,057.03
  5. Step 5: Solve for x
    x = 229,068,265,825,057.03/20,803,755.40
  6. Step 6: Final answer
    x = 11,010,909.40

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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.