Home / 28,928,419.84-39,918,580.95-17,165,661.40

Finding the Fourth Proportional to 28,928,419.84, 39,918,580.95 and 17,165,661.40

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Solution

The fourth proportional to 28,928,419.84, 39,918,580.95 and 17,165,661.40 is: 23,687,047.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,928,419.84 : 39,918,580.95 = 17,165,661.40 : x
  2. Step 2: Convert to fraction form
    28,928,419.84/39,918,580.95 = 17,165,661.40/x
  3. Step 3: Cross multiply
    28,928,419.84x = 39,918,580.95 × 17,165,661.40
  4. Step 4: Simplify right side
    28,928,419.84x = 685,228,844,156,190.38
  5. Step 5: Solve for x
    x = 685,228,844,156,190.38/28,928,419.84
  6. Step 6: Final answer
    x = 23,687,047.13

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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.