Home / 512,370,479.79-707,071,595.73-277,421,299.42

Finding the Fourth Proportional to 512,370,479.79, 707,071,595.73 and 277,421,299.42

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Solution

The fourth proportional to 512,370,479.79, 707,071,595.73 and 277,421,299.42 is: 382,841,573.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,370,479.79 : 707,071,595.73 = 277,421,299.42 : x
  2. Step 2: Convert to fraction form
    512,370,479.79/707,071,595.73 = 277,421,299.42/x
  3. Step 3: Cross multiply
    512,370,479.79x = 707,071,595.73 × 277,421,299.42
  4. Step 4: Simplify right side
    512,370,479.79x = 196,156,720,870,389,536
  5. Step 5: Solve for x
    x = 196,156,720,870,389,536/512,370,479.79
  6. Step 6: Final answer
    x = 382,841,573.84

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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.