Home / 12,971,877.96-17,901,404.38-7,745,342.80

Finding the Fourth Proportional to 12,971,877.96, 17,901,404.38 and 7,745,342.80

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Solution

The fourth proportional to 12,971,877.96, 17,901,404.38 and 7,745,342.80 is: 10,688,700.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,971,877.96 : 17,901,404.38 = 7,745,342.80 : x
  2. Step 2: Convert to fraction form
    12,971,877.96/17,901,404.38 = 7,745,342.80/x
  3. Step 3: Cross multiply
    12,971,877.96x = 17,901,404.38 × 7,745,342.80
  4. Step 4: Simplify right side
    12,971,877.96x = 138,652,513,524,521.45
  5. Step 5: Solve for x
    x = 138,652,513,524,521.45/12,971,877.96
  6. Step 6: Final answer
    x = 10,688,700.12

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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.