Home / 20,637,525.64-30,964,774.04-9,116,912.66

Finding the Fourth Proportional to 20,637,525.64, 30,964,774.04 and 9,116,912.66

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Solution

The fourth proportional to 20,637,525.64, 30,964,774.04 and 9,116,912.66 is: 13,679,117.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,637,525.64 : 30,964,774.04 = 9,116,912.66 : x
  2. Step 2: Convert to fraction form
    20,637,525.64/30,964,774.04 = 9,116,912.66/x
  3. Step 3: Cross multiply
    20,637,525.64x = 30,964,774.04 × 9,116,912.66
  4. Step 4: Simplify right side
    20,637,525.64x = 282,303,140,459,315.31
  5. Step 5: Solve for x
    x = 282,303,140,459,315.31/20,637,525.64
  6. Step 6: Final answer
    x = 13,679,117.61

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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.