Home / 462,241,237.20-693,361,855.80-155,431,381.20

Finding the Fourth Proportional to 462,241,237.20, 693,361,855.80 and 155,431,381.20

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Solution

The fourth proportional to 462,241,237.20, 693,361,855.80 and 155,431,381.20 is: 233,147,071.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,241,237.20 : 693,361,855.80 = 155,431,381.20 : x
  2. Step 2: Convert to fraction form
    462,241,237.20/693,361,855.80 = 155,431,381.20/x
  3. Step 3: Cross multiply
    462,241,237.20x = 693,361,855.80 × 155,431,381.20
  4. Step 4: Simplify right side
    462,241,237.20x = 107,770,190,918,389,216
  5. Step 5: Solve for x
    x = 107,770,190,918,389,216/462,241,237.20
  6. Step 6: Final answer
    x = 233,147,071.80

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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.