Home / 28,909,605.51-39,895,313.13-15,856,971.75

Finding the Fourth Proportional to 28,909,605.51, 39,895,313.13 and 15,856,971.75

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Solution

The fourth proportional to 28,909,605.51, 39,895,313.13 and 15,856,971.75 is: 21,882,652.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,909,605.51 : 39,895,313.13 = 15,856,971.75 : x
  2. Step 2: Convert to fraction form
    28,909,605.51/39,895,313.13 = 15,856,971.75/x
  3. Step 3: Cross multiply
    28,909,605.51x = 39,895,313.13 × 15,856,971.75
  4. Step 4: Simplify right side
    28,909,605.51x = 632,618,853,259,814.12
  5. Step 5: Solve for x
    x = 632,618,853,259,814.12/28,909,605.51
  6. Step 6: Final answer
    x = 21,882,652.57

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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.