Home / 18,829,286.40-28,243,929.60-5,182,406.40

Finding the Fourth Proportional to 18,829,286.40, 28,243,929.60 and 5,182,406.40

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Solution

The fourth proportional to 18,829,286.40, 28,243,929.60 and 5,182,406.40 is: 7,773,609.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,829,286.40 : 28,243,929.60 = 5,182,406.40 : x
  2. Step 2: Convert to fraction form
    18,829,286.40/28,243,929.60 = 5,182,406.40/x
  3. Step 3: Cross multiply
    18,829,286.40x = 28,243,929.60 × 5,182,406.40
  4. Step 4: Simplify right side
    18,829,286.40x = 146,371,521,520,189.47
  5. Step 5: Solve for x
    x = 146,371,521,520,189.47/18,829,286.40
  6. Step 6: Final answer
    x = 7,773,609.60

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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.