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Finding the Fourth Proportional to 265,770,472.80, 398,655,709.20 and 265,770,472.80

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Solution

The fourth proportional to 265,770,472.80, 398,655,709.20 and 265,770,472.80 is: 398,655,709.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,770,472.80 : 398,655,709.20 = 265,770,472.80 : x
  2. Step 2: Convert to fraction form
    265,770,472.80/398,655,709.20 = 265,770,472.80/x
  3. Step 3: Cross multiply
    265,770,472.80x = 398,655,709.20 × 265,770,472.80
  4. Step 4: Simplify right side
    265,770,472.80x = 105,950,916,318,503,312
  5. Step 5: Solve for x
    x = 105,950,916,318,503,312/265,770,472.80
  6. Step 6: Final answer
    x = 398,655,709.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.