Home / 258,973,615.40-388,460,423.10-177,344,277.80

Finding the Fourth Proportional to 258,973,615.40, 388,460,423.10 and 177,344,277.80

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Solution

The fourth proportional to 258,973,615.40, 388,460,423.10 and 177,344,277.80 is: 266,016,416.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,973,615.40 : 388,460,423.10 = 177,344,277.80 : x
  2. Step 2: Convert to fraction form
    258,973,615.40/388,460,423.10 = 177,344,277.80/x
  3. Step 3: Cross multiply
    258,973,615.40x = 388,460,423.10 × 177,344,277.80
  4. Step 4: Simplify right side
    258,973,615.40x = 68,891,233,188,551,944
  5. Step 5: Solve for x
    x = 68,891,233,188,551,944/258,973,615.40
  6. Step 6: Final answer
    x = 266,016,416.70

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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.