Home / 23,130,172.46-31,919,638.20-12,816,895.55

Finding the Fourth Proportional to 23,130,172.46, 31,919,638.20 and 12,816,895.55

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Solution

The fourth proportional to 23,130,172.46, 31,919,638.20 and 12,816,895.55 is: 17,687,315.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,130,172.46 : 31,919,638.20 = 12,816,895.55 : x
  2. Step 2: Convert to fraction form
    23,130,172.46/31,919,638.20 = 12,816,895.55/x
  3. Step 3: Cross multiply
    23,130,172.46x = 31,919,638.20 × 12,816,895.55
  4. Step 4: Simplify right side
    23,130,172.46x = 409,110,668,643,591.81
  5. Step 5: Solve for x
    x = 409,110,668,643,591.81/23,130,172.46
  6. Step 6: Final answer
    x = 17,687,315.97

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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.