Home / 12,884,901-17,780,710.14-7,083,640.68

Finding the Fourth Proportional to 12,884,901, 17,780,710.14 and 7,083,640.68

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Solution

The fourth proportional to 12,884,901, 17,780,710.14 and 7,083,640.68 is: 9,775,174.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,884,901 : 17,780,710.14 = 7,083,640.68 : x
  2. Step 2: Convert to fraction form
    12,884,901/17,780,710.14 = 7,083,640.68/x
  3. Step 3: Cross multiply
    12,884,901x = 17,780,710.14 × 7,083,640.68
  4. Step 4: Simplify right side
    12,884,901x = 125,952,161,666,992.50
  5. Step 5: Solve for x
    x = 125,952,161,666,992.50/12,884,901
  6. Step 6: Final answer
    x = 9,775,174.96

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1.5x scale

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.