Home / 512,676,489.76-707,490,528.24-277,731,628.72

Finding the Fourth Proportional to 512,676,489.76, 707,490,528.24 and 277,731,628.72

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Solution

The fourth proportional to 512,676,489.76, 707,490,528.24 and 277,731,628.72 is: 383,268,007.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,676,489.76 : 707,490,528.24 = 277,731,628.72 : x
  2. Step 2: Convert to fraction form
    512,676,489.76/707,490,528.24 = 277,731,628.72/x
  3. Step 3: Cross multiply
    512,676,489.76x = 707,490,528.24 × 277,731,628.72
  4. Step 4: Simplify right side
    512,676,489.76x = 196,492,496,712,068,384
  5. Step 5: Solve for x
    x = 196,492,496,712,068,384/512,676,489.76
  6. Step 6: Final answer
    x = 383,268,007.48

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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.