Home / 474,926,564,146.72-655,470,300,310.80-289,635,769,895.68

Finding the Fourth Proportional to 474,926,564,146.72, 655,470,300,310.80 and 289,635,769,895.68

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Solution

The fourth proportional to 474,926,564,146.72, 655,470,300,310.80 and 289,635,769,895.68 is: 399,741,053,472.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,926,564,146.72 : 655,470,300,310.80 = 289,635,769,895.68 : x
  2. Step 2: Convert to fraction form
    474,926,564,146.72/655,470,300,310.80 = 289,635,769,895.68/x
  3. Step 3: Cross multiply
    474,926,564,146.72x = 655,470,300,310.80 × 289,635,769,895.68
  4. Step 4: Simplify right side
    474,926,564,146.72x = 189,847,645,074,271,156,305,920
  5. Step 5: Solve for x
    x = 189,847,645,074,271,156,305,920/474,926,564,146.72
  6. Step 6: Final answer
    x = 399,741,053,472.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.