Home / 13,145,383.37-18,140,294.84-7,344,208.68

Finding the Fourth Proportional to 13,145,383.37, 18,140,294.84 and 7,344,208.68

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Solution

The fourth proportional to 13,145,383.37, 18,140,294.84 and 7,344,208.68 is: 10,134,821.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,145,383.37 : 18,140,294.84 = 7,344,208.68 : x
  2. Step 2: Convert to fraction form
    13,145,383.37/18,140,294.84 = 7,344,208.68/x
  3. Step 3: Cross multiply
    13,145,383.37x = 18,140,294.84 × 7,344,208.68
  4. Step 4: Simplify right side
    13,145,383.37x = 133,226,110,784,966.17
  5. Step 5: Solve for x
    x = 133,226,110,784,966.17/13,145,383.37
  6. Step 6: Final answer
    x = 10,134,821.26

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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.