Home / 21,258,004.80-31,894,880.40-8,487,674.40

Finding the Fourth Proportional to 21,258,004.80, 31,894,880.40 and 8,487,674.40

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Solution

The fourth proportional to 21,258,004.80, 31,894,880.40 and 8,487,674.40 is: 12,734,655.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,258,004.80 : 31,894,880.40 = 8,487,674.40 : x
  2. Step 2: Convert to fraction form
    21,258,004.80/31,894,880.40 = 8,487,674.40/x
  3. Step 3: Cross multiply
    21,258,004.80x = 31,894,880.40 × 8,487,674.40
  4. Step 4: Simplify right side
    21,258,004.80x = 270,713,359,862,141.75
  5. Step 5: Solve for x
    x = 270,713,359,862,141.75/21,258,004.80
  6. Step 6: Final answer
    x = 12,734,655.13

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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.