Home / 20,158,205.70-30,237,308.55-7,387,875.30

Finding the Fourth Proportional to 20,158,205.70, 30,237,308.55 and 7,387,875.30

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Solution

The fourth proportional to 20,158,205.70, 30,237,308.55 and 7,387,875.30 is: 11,081,812.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,158,205.70 : 30,237,308.55 = 7,387,875.30 : x
  2. Step 2: Convert to fraction form
    20,158,205.70/30,237,308.55 = 7,387,875.30/x
  3. Step 3: Cross multiply
    20,158,205.70x = 30,237,308.55 × 7,387,875.30
  4. Step 4: Simplify right side
    20,158,205.70x = 223,389,464,975,023.81
  5. Step 5: Solve for x
    x = 223,389,464,975,023.81/20,158,205.70
  6. Step 6: Final answer
    x = 11,081,812.95

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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.