Home / 430,094,845.07-645,146,001.21-138,961,998.97

Finding the Fourth Proportional to 430,094,845.07, 645,146,001.21 and 138,961,998.97

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Solution

The fourth proportional to 430,094,845.07, 645,146,001.21 and 138,961,998.97 is: 208,444,204.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,094,845.07 : 645,146,001.21 = 138,961,998.97 : x
  2. Step 2: Convert to fraction form
    430,094,845.07/645,146,001.21 = 138,961,998.97/x
  3. Step 3: Cross multiply
    430,094,845.07x = 645,146,001.21 × 138,961,998.97
  4. Step 4: Simplify right side
    430,094,845.07x = 89,650,777,954,551,888
  5. Step 5: Solve for x
    x = 89,650,777,954,551,888/430,094,845.07
  6. Step 6: Final answer
    x = 208,444,204.77

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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.