Home / 286,021,251.31-429,035,862.77-81,549,326.56

Finding the Fourth Proportional to 286,021,251.31, 429,035,862.77 and 81,549,326.56

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Solution

The fourth proportional to 286,021,251.31, 429,035,862.77 and 81,549,326.56 is: 122,325,126.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,021,251.31 : 429,035,862.77 = 81,549,326.56 : x
  2. Step 2: Convert to fraction form
    286,021,251.31/429,035,862.77 = 81,549,326.56/x
  3. Step 3: Cross multiply
    286,021,251.31x = 429,035,862.77 × 81,549,326.56
  4. Step 4: Simplify right side
    286,021,251.31x = 34,987,585,678,982,076
  5. Step 5: Solve for x
    x = 34,987,585,678,982,076/286,021,251.31
  6. Step 6: Final answer
    x = 122,325,126.26

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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.