Home / 20,100,515.76-30,146,927.76-7,804,479.36

Finding the Fourth Proportional to 20,100,515.76, 30,146,927.76 and 7,804,479.36

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Solution

The fourth proportional to 20,100,515.76, 30,146,927.76 and 7,804,479.36 is: 11,705,225.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,100,515.76 : 30,146,927.76 = 7,804,479.36 : x
  2. Step 2: Convert to fraction form
    20,100,515.76/30,146,927.76 = 7,804,479.36/x
  3. Step 3: Cross multiply
    20,100,515.76x = 30,146,927.76 × 7,804,479.36
  4. Step 4: Simplify right side
    20,100,515.76x = 235,281,075,470,331.06
  5. Step 5: Solve for x
    x = 235,281,075,470,331.06/20,100,515.76
  6. Step 6: Final answer
    x = 11,705,225.79

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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.