Home / 28,411,990.85-39,219,209.57-18,623,065.49

Finding the Fourth Proportional to 28,411,990.85, 39,219,209.57 and 18,623,065.49

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Solution

The fourth proportional to 28,411,990.85, 39,219,209.57 and 18,623,065.49 is: 25,706,819.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,411,990.85 : 39,219,209.57 = 18,623,065.49 : x
  2. Step 2: Convert to fraction form
    28,411,990.85/39,219,209.57 = 18,623,065.49/x
  3. Step 3: Cross multiply
    28,411,990.85x = 39,219,209.57 × 18,623,065.49
  4. Step 4: Simplify right side
    28,411,990.85x = 730,381,908,195,029.25
  5. Step 5: Solve for x
    x = 730,381,908,195,029.25/28,411,990.85
  6. Step 6: Final answer
    x = 25,706,819.07

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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.