Home / 743,549,412.78-1,115,087,493.67-245,467,187.81

Finding the Fourth Proportional to 743,549,412.78, 1,115,087,493.67 and 245,467,187.81

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Solution

The fourth proportional to 743,549,412.78, 1,115,087,493.67 and 245,467,187.81 is: 368,122,664.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,549,412.78 : 1,115,087,493.67 = 245,467,187.81 : x
  2. Step 2: Convert to fraction form
    743,549,412.78/1,115,087,493.67 = 245,467,187.81/x
  3. Step 3: Cross multiply
    743,549,412.78x = 1,115,087,493.67 × 245,467,187.81
  4. Step 4: Simplify right side
    743,549,412.78x = 273,717,391,231,279,680
  5. Step 5: Solve for x
    x = 273,717,391,231,279,680/743,549,412.78
  6. Step 6: Final answer
    x = 368,122,664.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.