Home / 1,180,191,905.60-1,628,656,397.33-644,343,553.85

Finding the Fourth Proportional to 1,180,191,905.60, 1,628,656,397.33 and 644,343,553.85

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Solution

The fourth proportional to 1,180,191,905.60, 1,628,656,397.33 and 644,343,553.85 is: 889,189,500.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180,191,905.60 : 1,628,656,397.33 = 644,343,553.85 : x
  2. Step 2: Convert to fraction form
    1,180,191,905.60/1,628,656,397.33 = 644,343,553.85/x
  3. Step 3: Cross multiply
    1,180,191,905.60x = 1,628,656,397.33 × 644,343,553.85
  4. Step 4: Simplify right side
    1,180,191,905.60x = 1,049,414,251,044,784,896
  5. Step 5: Solve for x
    x = 1,049,414,251,044,784,896/1,180,191,905.60
  6. Step 6: Final answer
    x = 889,189,500.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.