Home / 426,508,839.06-639,763,258.59-103,392,711.06

Finding the Fourth Proportional to 426,508,839.06, 639,763,258.59 and 103,392,711.06

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Solution

The fourth proportional to 426,508,839.06, 639,763,258.59 and 103,392,711.06 is: 155,089,066.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,508,839.06 : 639,763,258.59 = 103,392,711.06 : x
  2. Step 2: Convert to fraction form
    426,508,839.06/639,763,258.59 = 103,392,711.06/x
  3. Step 3: Cross multiply
    426,508,839.06x = 639,763,258.59 × 103,392,711.06
  4. Step 4: Simplify right side
    426,508,839.06x = 66,146,857,742,199,936
  5. Step 5: Solve for x
    x = 66,146,857,742,199,936/426,508,839.06
  6. Step 6: Final answer
    x = 155,089,066.59

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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.