Home / 291,397,666.60-437,040,512.70-86,932,412.20

Finding the Fourth Proportional to 291,397,666.60, 437,040,512.70 and 86,932,412.20

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Solution

The fourth proportional to 291,397,666.60, 437,040,512.70 and 86,932,412.20 is: 130,381,915.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,397,666.60 : 437,040,512.70 = 86,932,412.20 : x
  2. Step 2: Convert to fraction form
    291,397,666.60/437,040,512.70 = 86,932,412.20/x
  3. Step 3: Cross multiply
    291,397,666.60x = 437,040,512.70 × 86,932,412.20
  4. Step 4: Simplify right side
    291,397,666.60x = 37,992,985,998,135,736
  5. Step 5: Solve for x
    x = 37,992,985,998,135,736/291,397,666.60
  6. Step 6: Final answer
    x = 130,381,915.69

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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.