Home / 286,021,249.56-429,035,860.15-81,549,324.81

Finding the Fourth Proportional to 286,021,249.56, 429,035,860.15 and 81,549,324.81

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Solution

The fourth proportional to 286,021,249.56, 429,035,860.15 and 81,549,324.81 is: 122,325,123.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,021,249.56 : 429,035,860.15 = 81,549,324.81 : x
  2. Step 2: Convert to fraction form
    286,021,249.56/429,035,860.15 = 81,549,324.81/x
  3. Step 3: Cross multiply
    286,021,249.56x = 429,035,860.15 × 81,549,324.81
  4. Step 4: Simplify right side
    286,021,249.56x = 34,987,584,714,306,212
  5. Step 5: Solve for x
    x = 34,987,584,714,306,212/286,021,249.56
  6. Step 6: Final answer
    x = 122,325,123.63

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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.