Home / 786,282,889.91-1,179,426,013.38-319,614,952.41

Finding the Fourth Proportional to 786,282,889.91, 1,179,426,013.38 and 319,614,952.41

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Solution

The fourth proportional to 786,282,889.91, 1,179,426,013.38 and 319,614,952.41 is: 479,423,110.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,282,889.91 : 1,179,426,013.38 = 319,614,952.41 : x
  2. Step 2: Convert to fraction form
    786,282,889.91/1,179,426,013.38 = 319,614,952.41/x
  3. Step 3: Cross multiply
    786,282,889.91x = 1,179,426,013.38 × 319,614,952.41
  4. Step 4: Simplify right side
    786,282,889.91x = 376,962,189,137,564,800
  5. Step 5: Solve for x
    x = 376,962,189,137,564,800/786,282,889.91
  6. Step 6: Final answer
    x = 479,423,110.92

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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.