Home / 13,824,038.70-20,736,058.05-7,777,421.10

Finding the Fourth Proportional to 13,824,038.70, 20,736,058.05 and 7,777,421.10

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Solution

The fourth proportional to 13,824,038.70, 20,736,058.05 and 7,777,421.10 is: 11,666,131.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824,038.70 : 20,736,058.05 = 7,777,421.10 : x
  2. Step 2: Convert to fraction form
    13,824,038.70/20,736,058.05 = 7,777,421.10/x
  3. Step 3: Cross multiply
    13,824,038.70x = 20,736,058.05 × 7,777,421.10
  4. Step 4: Simplify right side
    13,824,038.70x = 161,273,055,408,894.84
  5. Step 5: Solve for x
    x = 161,273,055,408,894.84/13,824,038.70
  6. Step 6: Final answer
    x = 11,666,131.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.