Home / 413,008,942.72-619,626,929.10-121,876,095.64

Finding the Fourth Proportional to 413,008,942.72, 619,626,929.10 and 121,876,095.64

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Solution

The fourth proportional to 413,008,942.72, 619,626,929.10 and 121,876,095.64 is: 182,847,640.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,008,942.72 : 619,626,929.10 = 121,876,095.64 : x
  2. Step 2: Convert to fraction form
    413,008,942.72/619,626,929.10 = 121,876,095.64/x
  3. Step 3: Cross multiply
    413,008,942.72x = 619,626,929.10 × 121,876,095.64
  4. Step 4: Simplify right side
    413,008,942.72x = 75,517,710,872,111,104
  5. Step 5: Solve for x
    x = 75,517,710,872,111,104/413,008,942.72
  6. Step 6: Final answer
    x = 182,847,640.96

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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.