Home / 648,739,872.48-895,283,400.24-355,384,466.40

Finding the Fourth Proportional to 648,739,872.48, 895,283,400.24 and 355,384,466.40

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Solution

The fourth proportional to 648,739,872.48, 895,283,400.24 and 355,384,466.40 is: 490,442,821.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,739,872.48 : 895,283,400.24 = 355,384,466.40 : x
  2. Step 2: Convert to fraction form
    648,739,872.48/895,283,400.24 = 355,384,466.40/x
  3. Step 3: Cross multiply
    648,739,872.48x = 895,283,400.24 × 355,384,466.40
  4. Step 4: Simplify right side
    648,739,872.48x = 318,169,813,471,070,016
  5. Step 5: Solve for x
    x = 318,169,813,471,070,016/648,739,872.48
  6. Step 6: Final answer
    x = 490,442,821.49

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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.