Home / 13,209,269.85-18,228,924.45-7,407,927.05

Finding the Fourth Proportional to 13,209,269.85, 18,228,924.45 and 7,407,927.05

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Solution

The fourth proportional to 13,209,269.85, 18,228,924.45 and 7,407,927.05 is: 10,223,013.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209,269.85 : 18,228,924.45 = 7,407,927.05 : x
  2. Step 2: Convert to fraction form
    13,209,269.85/18,228,924.45 = 7,407,927.05/x
  3. Step 3: Cross multiply
    13,209,269.85x = 18,228,924.45 × 7,407,927.05
  4. Step 4: Simplify right side
    13,209,269.85x = 135,038,542,434,416.75
  5. Step 5: Solve for x
    x = 135,038,542,434,416.75/13,209,269.85
  6. Step 6: Final answer
    x = 10,223,013.38

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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.