Home / 391,445,256.24-587,396,846.88-145,971,477.36

Finding the Fourth Proportional to 391,445,256.24, 587,396,846.88 and 145,971,477.36

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Solution

The fourth proportional to 391,445,256.24, 587,396,846.88 and 145,971,477.36 is: 219,042,597.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,445,256.24 : 587,396,846.88 = 145,971,477.36 : x
  2. Step 2: Convert to fraction form
    391,445,256.24/587,396,846.88 = 145,971,477.36/x
  3. Step 3: Cross multiply
    391,445,256.24x = 587,396,846.88 × 145,971,477.36
  4. Step 4: Simplify right side
    391,445,256.24x = 85,743,185,535,679,312
  5. Step 5: Solve for x
    x = 85,743,185,535,679,312/391,445,256.24
  6. Step 6: Final answer
    x = 219,042,597.07

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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.