Home / 131,138,654.40-196,707,981.60-127,779,422.40

Finding the Fourth Proportional to 131,138,654.40, 196,707,981.60 and 127,779,422.40

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Solution

The fourth proportional to 131,138,654.40, 196,707,981.60 and 127,779,422.40 is: 191,669,133.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,138,654.40 : 196,707,981.60 = 127,779,422.40 : x
  2. Step 2: Convert to fraction form
    131,138,654.40/196,707,981.60 = 127,779,422.40/x
  3. Step 3: Cross multiply
    131,138,654.40x = 196,707,981.60 × 127,779,422.40
  4. Step 4: Simplify right side
    131,138,654.40x = 25,135,232,270,317,828
  5. Step 5: Solve for x
    x = 25,135,232,270,317,828/131,138,654.40
  6. Step 6: Final answer
    x = 191,669,133.60

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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.