Home / 13,390,188.60-18,478,242.54-7,278,771

Finding the Fourth Proportional to 13,390,188.60, 18,478,242.54 and 7,278,771

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Solution

The fourth proportional to 13,390,188.60, 18,478,242.54 and 7,278,771 is: 10,044,585.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390,188.60 : 18,478,242.54 = 7,278,771 : x
  2. Step 2: Convert to fraction form
    13,390,188.60/18,478,242.54 = 7,278,771/x
  3. Step 3: Cross multiply
    13,390,188.60x = 18,478,242.54 × 7,278,771
  4. Step 4: Simplify right side
    13,390,188.60x = 134,498,895,931,118.33
  5. Step 5: Solve for x
    x = 134,498,895,931,118.33/13,390,188.60
  6. Step 6: Final answer
    x = 10,044,585.63

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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.