Home / 14,215,988.70-21,323,983.05-13,657,975.65

Finding the Fourth Proportional to 14,215,988.70, 21,323,983.05 and 13,657,975.65

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Solution

The fourth proportional to 14,215,988.70, 21,323,983.05 and 13,657,975.65 is: 20,486,963.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,215,988.70 : 21,323,983.05 = 13,657,975.65 : x
  2. Step 2: Convert to fraction form
    14,215,988.70/21,323,983.05 = 13,657,975.65/x
  3. Step 3: Cross multiply
    14,215,988.70x = 21,323,983.05 × 13,657,975.65
  4. Step 4: Simplify right side
    14,215,988.70x = 291,242,441,257,912.75
  5. Step 5: Solve for x
    x = 291,242,441,257,912.75/14,215,988.70
  6. Step 6: Final answer
    x = 20,486,963.48

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1.5x scale

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.