Home / 426,411,749.45-639,557,908.45-146,288,014.88

Finding the Fourth Proportional to 426,411,749.45, 639,557,908.45 and 146,288,014.88

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Solution

The fourth proportional to 426,411,749.45, 639,557,908.45 and 146,288,014.88 is: 219,411,535.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,411,749.45 : 639,557,908.45 = 146,288,014.88 : x
  2. Step 2: Convert to fraction form
    426,411,749.45/639,557,908.45 = 146,288,014.88/x
  3. Step 3: Cross multiply
    426,411,749.45x = 639,557,908.45 × 146,288,014.88
  4. Step 4: Simplify right side
    426,411,749.45x = 93,559,656,824,391,760
  5. Step 5: Solve for x
    x = 93,559,656,824,391,760/426,411,749.45
  6. Step 6: Final answer
    x = 219,411,535.79

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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.