Home / 151,913,125-209,638,953.72-82,298,007.88

Finding the Fourth Proportional to 151,913,125, 209,638,953.72 and 82,298,007.88

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Solution

The fourth proportional to 151,913,125, 209,638,953.72 and 82,298,007.88 is: 113,570,623.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,913,125 : 209,638,953.72 = 82,298,007.88 : x
  2. Step 2: Convert to fraction form
    151,913,125/209,638,953.72 = 82,298,007.88/x
  3. Step 3: Cross multiply
    151,913,125x = 209,638,953.72 × 82,298,007.88
  4. Step 4: Simplify right side
    151,913,125x = 17,252,868,265,203,514
  5. Step 5: Solve for x
    x = 17,252,868,265,203,514/151,913,125
  6. Step 6: Final answer
    x = 113,570,623.11

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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.