Home / 15,220,706.88-21,004,568.64-8,345,042.40

Finding the Fourth Proportional to 15,220,706.88, 21,004,568.64 and 8,345,042.40

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Solution

The fourth proportional to 15,220,706.88, 21,004,568.64 and 8,345,042.40 is: 11,516,154.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,220,706.88 : 21,004,568.64 = 8,345,042.40 : x
  2. Step 2: Convert to fraction form
    15,220,706.88/21,004,568.64 = 8,345,042.40/x
  3. Step 3: Cross multiply
    15,220,706.88x = 21,004,568.64 × 8,345,042.40
  4. Step 4: Simplify right side
    15,220,706.88x = 175,284,015,894,510.34
  5. Step 5: Solve for x
    x = 175,284,015,894,510.34/15,220,706.88
  6. Step 6: Final answer
    x = 11,516,154.75

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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.