Home / 514,139,321.92-709,509,694.40-279,187,890.24

Finding the Fourth Proportional to 514,139,321.92, 709,509,694.40 and 279,187,890.24

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Solution

The fourth proportional to 514,139,321.92, 709,509,694.40 and 279,187,890.24 is: 385,277,893.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,139,321.92 : 709,509,694.40 = 279,187,890.24 : x
  2. Step 2: Convert to fraction form
    514,139,321.92/709,509,694.40 = 279,187,890.24/x
  3. Step 3: Cross multiply
    514,139,321.92x = 709,509,694.40 × 279,187,890.24
  4. Step 4: Simplify right side
    514,139,321.92x = 198,086,514,684,363,136
  5. Step 5: Solve for x
    x = 198,086,514,684,363,136/514,139,321.92
  6. Step 6: Final answer
    x = 385,277,893.05

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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.