Home / 21,303,014.80-31,954,522.20-12,233,088.40

Finding the Fourth Proportional to 21,303,014.80, 31,954,522.20 and 12,233,088.40

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Solution

The fourth proportional to 21,303,014.80, 31,954,522.20 and 12,233,088.40 is: 18,349,632.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,303,014.80 : 31,954,522.20 = 12,233,088.40 : x
  2. Step 2: Convert to fraction form
    21,303,014.80/31,954,522.20 = 12,233,088.40/x
  3. Step 3: Cross multiply
    21,303,014.80x = 31,954,522.20 × 12,233,088.40
  4. Step 4: Simplify right side
    21,303,014.80x = 390,902,494,852,362.50
  5. Step 5: Solve for x
    x = 390,902,494,852,362.50/21,303,014.80
  6. Step 6: Final answer
    x = 18,349,632.60

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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.