Home / 251,921,430.40-377,882,145.60-106,519,172.80

Finding the Fourth Proportional to 251,921,430.40, 377,882,145.60 and 106,519,172.80

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Solution

The fourth proportional to 251,921,430.40, 377,882,145.60 and 106,519,172.80 is: 159,778,759.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,921,430.40 : 377,882,145.60 = 106,519,172.80 : x
  2. Step 2: Convert to fraction form
    251,921,430.40/377,882,145.60 = 106,519,172.80/x
  3. Step 3: Cross multiply
    251,921,430.40x = 377,882,145.60 × 106,519,172.80
  4. Step 4: Simplify right side
    251,921,430.40x = 40,251,693,565,201,160
  5. Step 5: Solve for x
    x = 40,251,693,565,201,160/251,921,430.40
  6. Step 6: Final answer
    x = 159,778,759.20

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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.