Home / 13,351,914.36-18,425,641.86-7,240,347.72

Finding the Fourth Proportional to 13,351,914.36, 18,425,641.86 and 7,240,347.72

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Solution

The fourth proportional to 13,351,914.36, 18,425,641.86 and 7,240,347.72 is: 9,991,679.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351,914.36 : 18,425,641.86 = 7,240,347.72 : x
  2. Step 2: Convert to fraction form
    13,351,914.36/18,425,641.86 = 7,240,347.72/x
  3. Step 3: Cross multiply
    13,351,914.36x = 18,425,641.86 × 7,240,347.72
  4. Step 4: Simplify right side
    13,351,914.36x = 133,408,054,030,587.55
  5. Step 5: Solve for x
    x = 133,408,054,030,587.55/13,351,914.36
  6. Step 6: Final answer
    x = 9,991,679.88

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1.5x scale

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.