Home / 15,315,771.84-21,135,769.53-8,346,451.31

Finding the Fourth Proportional to 15,315,771.84, 21,135,769.53 and 8,346,451.31

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Solution

The fourth proportional to 15,315,771.84, 21,135,769.53 and 8,346,451.31 is: 11,518,105.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,315,771.84 : 21,135,769.53 = 8,346,451.31 : x
  2. Step 2: Convert to fraction form
    15,315,771.84/21,135,769.53 = 8,346,451.31/x
  3. Step 3: Cross multiply
    15,315,771.84x = 21,135,769.53 × 8,346,451.31
  4. Step 4: Simplify right side
    15,315,771.84x = 176,408,671,175,847.75
  5. Step 5: Solve for x
    x = 176,408,671,175,847.75/15,315,771.84
  6. Step 6: Final answer
    x = 11,518,105.19

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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.