Home / 80,385,609.88-120,585,607.44-31,200,310

Finding the Fourth Proportional to 80,385,609.88, 120,585,607.44 and 31,200,310

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Solution

The fourth proportional to 80,385,609.88, 120,585,607.44 and 31,200,310 is: 46,803,256.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,385,609.88 : 120,585,607.44 = 31,200,310 : x
  2. Step 2: Convert to fraction form
    80,385,609.88/120,585,607.44 = 31,200,310/x
  3. Step 3: Cross multiply
    80,385,609.88x = 120,585,607.44 × 31,200,310
  4. Step 4: Simplify right side
    80,385,609.88x = 3,762,308,333,666,306.50
  5. Step 5: Solve for x
    x = 3,762,308,333,666,306.50/80,385,609.88
  6. Step 6: Final answer
    x = 46,803,256.69

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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.