Home / 172,487,444.80-258,731,167.20-70,324,801.60

Finding the Fourth Proportional to 172,487,444.80, 258,731,167.20 and 70,324,801.60

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Solution

The fourth proportional to 172,487,444.80, 258,731,167.20 and 70,324,801.60 is: 105,487,202.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,487,444.80 : 258,731,167.20 = 70,324,801.60 : x
  2. Step 2: Convert to fraction form
    172,487,444.80/258,731,167.20 = 70,324,801.60/x
  3. Step 3: Cross multiply
    172,487,444.80x = 258,731,167.20 × 70,324,801.60
  4. Step 4: Simplify right side
    172,487,444.80x = 18,195,218,001,076,424
  5. Step 5: Solve for x
    x = 18,195,218,001,076,424/172,487,444.80
  6. Step 6: Final answer
    x = 105,487,202.40

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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.