Home / 7,714,216.90-11,571,207.44-1,878,457.20

Finding the Fourth Proportional to 7,714,216.90, 11,571,207.44 and 1,878,457.20

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Solution

The fourth proportional to 7,714,216.90, 11,571,207.44 and 1,878,457.20 is: 2,817,657.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,714,216.90 : 11,571,207.44 = 1,878,457.20 : x
  2. Step 2: Convert to fraction form
    7,714,216.90/11,571,207.44 = 1,878,457.20/x
  3. Step 3: Cross multiply
    7,714,216.90x = 11,571,207.44 × 1,878,457.20
  4. Step 4: Simplify right side
    7,714,216.90x = 21,736,017,928,361.57
  5. Step 5: Solve for x
    x = 21,736,017,928,361.57/7,714,216.90
  6. Step 6: Final answer
    x = 2,817,657.09

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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.