Home / 18,829,138.40-28,243,707.60-5,182,258.40

Finding the Fourth Proportional to 18,829,138.40, 28,243,707.60 and 5,182,258.40

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Solution

The fourth proportional to 18,829,138.40, 28,243,707.60 and 5,182,258.40 is: 7,773,387.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,829,138.40 : 28,243,707.60 = 5,182,258.40 : x
  2. Step 2: Convert to fraction form
    18,829,138.40/28,243,707.60 = 5,182,258.40/x
  3. Step 3: Cross multiply
    18,829,138.40x = 28,243,707.60 × 5,182,258.40
  4. Step 4: Simplify right side
    18,829,138.40x = 146,366,190,957,243.84
  5. Step 5: Solve for x
    x = 146,366,190,957,243.84/18,829,138.40
  6. Step 6: Final answer
    x = 7,773,387.60

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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.