Home / 13,125,913.40-18,113,763.83-7,245,550.86

Finding the Fourth Proportional to 13,125,913.40, 18,113,763.83 and 7,245,550.86

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Solution

The fourth proportional to 13,125,913.40, 18,113,763.83 and 7,245,550.86 is: 9,998,862.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,125,913.40 : 18,113,763.83 = 7,245,550.86 : x
  2. Step 2: Convert to fraction form
    13,125,913.40/18,113,763.83 = 7,245,550.86/x
  3. Step 3: Cross multiply
    13,125,913.40x = 18,113,763.83 × 7,245,550.86
  4. Step 4: Simplify right side
    13,125,913.40x = 131,244,197,060,065.64
  5. Step 5: Solve for x
    x = 131,244,197,060,065.64/13,125,913.40
  6. Step 6: Final answer
    x = 9,998,862.03

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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.