Home / 23,131,079.90-31,921,080.42-12,817,975.22

Finding the Fourth Proportional to 23,131,079.90, 31,921,080.42 and 12,817,975.22

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Solution

The fourth proportional to 23,131,079.90, 31,921,080.42 and 12,817,975.22 is: 17,688,911.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,131,079.90 : 31,921,080.42 = 12,817,975.22 : x
  2. Step 2: Convert to fraction form
    23,131,079.90/31,921,080.42 = 12,817,975.22/x
  3. Step 3: Cross multiply
    23,131,079.90x = 31,921,080.42 × 12,817,975.22
  4. Step 4: Simplify right side
    23,131,079.90x = 409,163,617,819,187.25
  5. Step 5: Solve for x
    x = 409,163,617,819,187.25/23,131,079.90
  6. Step 6: Final answer
    x = 17,688,911.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.