Home / 637,460,952.48-879,672,890.18-355,188,809.12

Finding the Fourth Proportional to 637,460,952.48, 879,672,890.18 and 355,188,809.12

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Solution

The fourth proportional to 637,460,952.48, 879,672,890.18 and 355,188,809.12 is: 490,147,616.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,460,952.48 : 879,672,890.18 = 355,188,809.12 : x
  2. Step 2: Convert to fraction form
    637,460,952.48/879,672,890.18 = 355,188,809.12/x
  3. Step 3: Cross multiply
    637,460,952.48x = 879,672,890.18 × 355,188,809.12
  4. Step 4: Simplify right side
    637,460,952.48x = 312,449,966,272,008,448
  5. Step 5: Solve for x
    x = 312,449,966,272,008,448/637,460,952.48
  6. Step 6: Final answer
    x = 490,147,616.19

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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.