Home / 309,385,585.53-464,071,636.87-145,532,520.79

Finding the Fourth Proportional to 309,385,585.53, 464,071,636.87 and 145,532,520.79

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Solution

The fourth proportional to 309,385,585.53, 464,071,636.87 and 145,532,520.79 is: 218,295,610.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,385,585.53 : 464,071,636.87 = 145,532,520.79 : x
  2. Step 2: Convert to fraction form
    309,385,585.53/464,071,636.87 = 145,532,520.79/x
  3. Step 3: Cross multiply
    309,385,585.53x = 464,071,636.87 × 145,532,520.79
  4. Step 4: Simplify right side
    309,385,585.53x = 67,537,515,139,311,496
  5. Step 5: Solve for x
    x = 67,537,515,139,311,496/309,385,585.53
  6. Step 6: Final answer
    x = 218,295,610.07

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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.