Home / 12,960,380.81-17,885,868.53-7,453,759.40

Finding the Fourth Proportional to 12,960,380.81, 17,885,868.53 and 7,453,759.40

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Solution

The fourth proportional to 12,960,380.81, 17,885,868.53 and 7,453,759.40 is: 10,286,500.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960,380.81 : 17,885,868.53 = 7,453,759.40 : x
  2. Step 2: Convert to fraction form
    12,960,380.81/17,885,868.53 = 7,453,759.40/x
  3. Step 3: Cross multiply
    12,960,380.81x = 17,885,868.53 × 7,453,759.40
  4. Step 4: Simplify right side
    12,960,380.81x = 133,316,960,555,953.52
  5. Step 5: Solve for x
    x = 133,316,960,555,953.52/12,960,380.81
  6. Step 6: Final answer
    x = 10,286,500.26

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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.