Home / 386,961,863.04-534,045,090.24-289,006,657.92

Finding the Fourth Proportional to 386,961,863.04, 534,045,090.24 and 289,006,657.92

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Solution

The fourth proportional to 386,961,863.04, 534,045,090.24 and 289,006,657.92 is: 398,857,358.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,961,863.04 : 534,045,090.24 = 289,006,657.92 : x
  2. Step 2: Convert to fraction form
    386,961,863.04/534,045,090.24 = 289,006,657.92/x
  3. Step 3: Cross multiply
    386,961,863.04x = 534,045,090.24 × 289,006,657.92
  4. Step 4: Simplify right side
    386,961,863.04x = 154,342,586,708,847,232
  5. Step 5: Solve for x
    x = 154,342,586,708,847,232/386,961,863.04
  6. Step 6: Final answer
    x = 398,857,358.96

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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.