Home / 13,203,210.88-18,220,496.32-7,402,237.12

Finding the Fourth Proportional to 13,203,210.88, 18,220,496.32 and 7,402,237.12

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Solution

The fourth proportional to 13,203,210.88, 18,220,496.32 and 7,402,237.12 is: 10,215,123.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,203,210.88 : 18,220,496.32 = 7,402,237.12 : x
  2. Step 2: Convert to fraction form
    13,203,210.88/18,220,496.32 = 7,402,237.12/x
  3. Step 3: Cross multiply
    13,203,210.88x = 18,220,496.32 × 7,402,237.12
  4. Step 4: Simplify right side
    13,203,210.88x = 134,872,434,204,727.41
  5. Step 5: Solve for x
    x = 134,872,434,204,727.41/13,203,210.88
  6. Step 6: Final answer
    x = 10,215,123.84

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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.