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Finding the Fourth Proportional to 386,329,814.80, 579,494,722.20 and 232,896,893.20

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Solution

The fourth proportional to 386,329,814.80, 579,494,722.20 and 232,896,893.20 is: 349,345,339.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,329,814.80 : 579,494,722.20 = 232,896,893.20 : x
  2. Step 2: Convert to fraction form
    386,329,814.80/579,494,722.20 = 232,896,893.20/x
  3. Step 3: Cross multiply
    386,329,814.80x = 579,494,722.20 × 232,896,893.20
  4. Step 4: Simplify right side
    386,329,814.80x = 134,962,520,426,177,072
  5. Step 5: Solve for x
    x = 134,962,520,426,177,072/386,329,814.80
  6. Step 6: Final answer
    x = 349,345,339.80

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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.