Home / 8,434,223.40-11,630,529.18-7,214,566.68

Finding the Fourth Proportional to 8,434,223.40, 11,630,529.18 and 7,214,566.68

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Solution

The fourth proportional to 8,434,223.40, 11,630,529.18 and 7,214,566.68 is: 9,948,660.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,434,223.40 : 11,630,529.18 = 7,214,566.68 : x
  2. Step 2: Convert to fraction form
    8,434,223.40/11,630,529.18 = 7,214,566.68/x
  3. Step 3: Cross multiply
    8,434,223.40x = 11,630,529.18 × 7,214,566.68
  4. Step 4: Simplify right side
    8,434,223.40x = 83,909,228,292,795.72
  5. Step 5: Solve for x
    x = 83,909,228,292,795.72/8,434,223.40
  6. Step 6: Final answer
    x = 9,948,660.87

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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.