Home / 159,127,916.72-219,576,881.40-100,368,387.44

Finding the Fourth Proportional to 159,127,916.72, 219,576,881.40 and 100,368,387.44

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Solution

The fourth proportional to 159,127,916.72, 219,576,881.40 and 100,368,387.44 is: 138,495,984.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,127,916.72 : 219,576,881.40 = 100,368,387.44 : x
  2. Step 2: Convert to fraction form
    159,127,916.72/219,576,881.40 = 100,368,387.44/x
  3. Step 3: Cross multiply
    159,127,916.72x = 219,576,881.40 × 100,368,387.44
  4. Step 4: Simplify right side
    159,127,916.72x = 22,038,577,505,222,128
  5. Step 5: Solve for x
    x = 22,038,577,505,222,128/159,127,916.72
  6. Step 6: Final answer
    x = 138,495,984.61

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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.