Home / 420,232,869.52-631,305,898.04-304,006,722.80

Finding the Fourth Proportional to 420,232,869.52, 631,305,898.04 and 304,006,722.80

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Solution

The fourth proportional to 420,232,869.52, 631,305,898.04 and 304,006,722.80 is: 456,702,107.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,232,869.52 : 631,305,898.04 = 304,006,722.80 : x
  2. Step 2: Convert to fraction form
    420,232,869.52/631,305,898.04 = 304,006,722.80/x
  3. Step 3: Cross multiply
    420,232,869.52x = 631,305,898.04 × 304,006,722.80
  4. Step 4: Simplify right side
    420,232,869.52x = 191,921,237,147,451,328
  5. Step 5: Solve for x
    x = 191,921,237,147,451,328/420,232,869.52
  6. Step 6: Final answer
    x = 456,702,107.49

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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.