Home / 424,927,379.40-637,391,069.10-252,315,342.60

Finding the Fourth Proportional to 424,927,379.40, 637,391,069.10 and 252,315,342.60

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Solution

The fourth proportional to 424,927,379.40, 637,391,069.10 and 252,315,342.60 is: 378,473,013.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,927,379.40 : 637,391,069.10 = 252,315,342.60 : x
  2. Step 2: Convert to fraction form
    424,927,379.40/637,391,069.10 = 252,315,342.60/x
  3. Step 3: Cross multiply
    424,927,379.40x = 637,391,069.10 × 252,315,342.60
  4. Step 4: Simplify right side
    424,927,379.40x = 160,823,545,970,146,784
  5. Step 5: Solve for x
    x = 160,823,545,970,146,784/424,927,379.40
  6. Step 6: Final answer
    x = 378,473,013.90

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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.