Home / 126,470,001.60-189,705,002.40-75,451,665.60

Finding the Fourth Proportional to 126,470,001.60, 189,705,002.40 and 75,451,665.60

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Solution

The fourth proportional to 126,470,001.60, 189,705,002.40 and 75,451,665.60 is: 113,177,498.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,470,001.60 : 189,705,002.40 = 75,451,665.60 : x
  2. Step 2: Convert to fraction form
    126,470,001.60/189,705,002.40 = 75,451,665.60/x
  3. Step 3: Cross multiply
    126,470,001.60x = 189,705,002.40 × 75,451,665.60
  4. Step 4: Simplify right side
    126,470,001.60x = 14,313,558,403,731,996
  5. Step 5: Solve for x
    x = 14,313,558,403,731,996/126,470,001.60
  6. Step 6: Final answer
    x = 113,177,498.40

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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.