Home / 315,300,045.60-435,318,801.12-282,202,979.04

Finding the Fourth Proportional to 315,300,045.60, 435,318,801.12 and 282,202,979.04

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Solution

The fourth proportional to 315,300,045.60, 435,318,801.12 and 282,202,979.04 is: 389,623,357.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,300,045.60 : 435,318,801.12 = 282,202,979.04 : x
  2. Step 2: Convert to fraction form
    315,300,045.60/435,318,801.12 = 282,202,979.04/x
  3. Step 3: Cross multiply
    315,300,045.60x = 435,318,801.12 × 282,202,979.04
  4. Step 4: Simplify right side
    315,300,045.60x = 122,848,262,508,185,296
  5. Step 5: Solve for x
    x = 122,848,262,508,185,296/315,300,045.60
  6. Step 6: Final answer
    x = 389,623,357.89

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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.