Home / 13,503,993.16-18,635,509.10-7,309,038.74

Finding the Fourth Proportional to 13,503,993.16, 18,635,509.10 and 7,309,038.74

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Solution

The fourth proportional to 13,503,993.16, 18,635,509.10 and 7,309,038.74 is: 10,086,472.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,503,993.16 : 18,635,509.10 = 7,309,038.74 : x
  2. Step 2: Convert to fraction form
    13,503,993.16/18,635,509.10 = 7,309,038.74/x
  3. Step 3: Cross multiply
    13,503,993.16x = 18,635,509.10 × 7,309,038.74
  4. Step 4: Simplify right side
    13,503,993.16x = 136,207,657,951,522.55
  5. Step 5: Solve for x
    x = 136,207,657,951,522.55/13,503,993.16
  6. Step 6: Final answer
    x = 10,086,472.67

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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.