Home / 426,508,840.56-639,763,260.84-103,392,712.56

Finding the Fourth Proportional to 426,508,840.56, 639,763,260.84 and 103,392,712.56

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Solution

The fourth proportional to 426,508,840.56, 639,763,260.84 and 103,392,712.56 is: 155,089,068.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,508,840.56 : 639,763,260.84 = 103,392,712.56 : x
  2. Step 2: Convert to fraction form
    426,508,840.56/639,763,260.84 = 103,392,712.56/x
  3. Step 3: Cross multiply
    426,508,840.56x = 639,763,260.84 × 103,392,712.56
  4. Step 4: Simplify right side
    426,508,840.56x = 66,146,858,934,478,432
  5. Step 5: Solve for x
    x = 66,146,858,934,478,432/426,508,840.56
  6. Step 6: Final answer
    x = 155,089,068.84

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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.