Home / 13,353,705.40-20,030,558.10-13,211,987.80

Finding the Fourth Proportional to 13,353,705.40, 20,030,558.10 and 13,211,987.80

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Solution

The fourth proportional to 13,353,705.40, 20,030,558.10 and 13,211,987.80 is: 19,817,981.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,353,705.40 : 20,030,558.10 = 13,211,987.80 : x
  2. Step 2: Convert to fraction form
    13,353,705.40/20,030,558.10 = 13,211,987.80/x
  3. Step 3: Cross multiply
    13,353,705.40x = 20,030,558.10 × 13,211,987.80
  4. Step 4: Simplify right side
    13,353,705.40x = 264,643,489,244,391.22
  5. Step 5: Solve for x
    x = 264,643,489,244,391.22/13,353,705.40
  6. Step 6: Final answer
    x = 19,817,981.70

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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.