Home / 20,311,298.32-30,466,980.24-7,190,479.12

Finding the Fourth Proportional to 20,311,298.32, 30,466,980.24 and 7,190,479.12

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Solution

The fourth proportional to 20,311,298.32, 30,466,980.24 and 7,190,479.12 is: 10,785,730.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,311,298.32 : 30,466,980.24 = 7,190,479.12 : x
  2. Step 2: Convert to fraction form
    20,311,298.32/30,466,980.24 = 7,190,479.12/x
  3. Step 3: Cross multiply
    20,311,298.32x = 30,466,980.24 × 7,190,479.12
  4. Step 4: Simplify right side
    20,311,298.32x = 219,072,185,265,172.59
  5. Step 5: Solve for x
    x = 219,072,185,265,172.59/20,311,298.32
  6. Step 6: Final answer
    x = 10,785,730.28

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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.