Home / 402,036,121.60-603,054,182.40-172,028,456.80

Finding the Fourth Proportional to 402,036,121.60, 603,054,182.40 and 172,028,456.80

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Solution

The fourth proportional to 402,036,121.60, 603,054,182.40 and 172,028,456.80 is: 258,042,685.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,036,121.60 : 603,054,182.40 = 172,028,456.80 : x
  2. Step 2: Convert to fraction form
    402,036,121.60/603,054,182.40 = 172,028,456.80/x
  3. Step 3: Cross multiply
    402,036,121.60x = 603,054,182.40 × 172,028,456.80
  4. Step 4: Simplify right side
    402,036,121.60x = 103,742,480,365,057,728
  5. Step 5: Solve for x
    x = 103,742,480,365,057,728/402,036,121.60
  6. Step 6: Final answer
    x = 258,042,685.20

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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.