Home / 291,030,011.10-436,545,016.65-145,486,035.90

Finding the Fourth Proportional to 291,030,011.10, 436,545,016.65 and 145,486,035.90

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Solution

The fourth proportional to 291,030,011.10, 436,545,016.65 and 145,486,035.90 is: 218,229,053.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,030,011.10 : 436,545,016.65 = 145,486,035.90 : x
  2. Step 2: Convert to fraction form
    291,030,011.10/436,545,016.65 = 145,486,035.90/x
  3. Step 3: Cross multiply
    291,030,011.10x = 436,545,016.65 × 145,486,035.90
  4. Step 4: Simplify right side
    291,030,011.10x = 63,511,203,964,308,000
  5. Step 5: Solve for x
    x = 63,511,203,964,308,000/291,030,011.10
  6. Step 6: Final answer
    x = 218,229,053.85

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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.