Home / 20,913,730.80-31,370,622.12-6,536,872.32

Finding the Fourth Proportional to 20,913,730.80, 31,370,622.12 and 6,536,872.32

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Solution

The fourth proportional to 20,913,730.80, 31,370,622.12 and 6,536,872.32 is: 9,805,316.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,913,730.80 : 31,370,622.12 = 6,536,872.32 : x
  2. Step 2: Convert to fraction form
    20,913,730.80/31,370,622.12 = 6,536,872.32/x
  3. Step 3: Cross multiply
    20,913,730.80x = 31,370,622.12 × 6,536,872.32
  4. Step 4: Simplify right side
    20,913,730.80x = 205,065,751,397,407.75
  5. Step 5: Solve for x
    x = 205,065,751,397,407.75/20,913,730.80
  6. Step 6: Final answer
    x = 9,805,316.58

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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.