Home / 289,756,817.70-434,635,226.55-197,923,812.90

Finding the Fourth Proportional to 289,756,817.70, 434,635,226.55 and 197,923,812.90

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Solution

The fourth proportional to 289,756,817.70, 434,635,226.55 and 197,923,812.90 is: 296,885,719.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,756,817.70 : 434,635,226.55 = 197,923,812.90 : x
  2. Step 2: Convert to fraction form
    289,756,817.70/434,635,226.55 = 197,923,812.90/x
  3. Step 3: Cross multiply
    289,756,817.70x = 434,635,226.55 × 197,923,812.90
  4. Step 4: Simplify right side
    289,756,817.70x = 86,024,661,259,431,312
  5. Step 5: Solve for x
    x = 86,024,661,259,431,312/289,756,817.70
  6. Step 6: Final answer
    x = 296,885,719.35

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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.