Home / 426,023,114.70-639,034,672.05-196,440,602.70

Finding the Fourth Proportional to 426,023,114.70, 639,034,672.05 and 196,440,602.70

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Solution

The fourth proportional to 426,023,114.70, 639,034,672.05 and 196,440,602.70 is: 294,660,904.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,023,114.70 : 639,034,672.05 = 196,440,602.70 : x
  2. Step 2: Convert to fraction form
    426,023,114.70/639,034,672.05 = 196,440,602.70/x
  3. Step 3: Cross multiply
    426,023,114.70x = 639,034,672.05 × 196,440,602.70
  4. Step 4: Simplify right side
    426,023,114.70x = 125,532,356,123,698,832
  5. Step 5: Solve for x
    x = 125,532,356,123,698,832/426,023,114.70
  6. Step 6: Final answer
    x = 294,660,904.05

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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.