Home / 427,808,670.60-641,756,508.33-147,653,123.70

Finding the Fourth Proportional to 427,808,670.60, 641,756,508.33 and 147,653,123.70

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Solution

The fourth proportional to 427,808,670.60, 641,756,508.33 and 147,653,123.70 is: 221,494,699.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,808,670.60 : 641,756,508.33 = 147,653,123.70 : x
  2. Step 2: Convert to fraction form
    427,808,670.60/641,756,508.33 = 147,653,123.70/x
  3. Step 3: Cross multiply
    427,808,670.60x = 641,756,508.33 × 147,653,123.70
  4. Step 4: Simplify right side
    427,808,670.60x = 94,757,353,109,729,568
  5. Step 5: Solve for x
    x = 94,757,353,109,729,568/427,808,670.60
  6. Step 6: Final answer
    x = 221,494,699.90

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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.