Home / 449,323,288.40-672,641,239.80-422,748,030.80

Finding the Fourth Proportional to 449,323,288.40, 672,641,239.80 and 422,748,030.80

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Solution

The fourth proportional to 449,323,288.40, 672,641,239.80 and 422,748,030.80 is: 632,857,826.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,323,288.40 : 672,641,239.80 = 422,748,030.80 : x
  2. Step 2: Convert to fraction form
    449,323,288.40/672,641,239.80 = 422,748,030.80/x
  3. Step 3: Cross multiply
    449,323,288.40x = 672,641,239.80 × 422,748,030.80
  4. Step 4: Simplify right side
    449,323,288.40x = 284,357,759,560,320,576
  5. Step 5: Solve for x
    x = 284,357,759,560,320,576/449,323,288.40
  6. Step 6: Final answer
    x = 632,857,826.21

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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.