Home / 30,338,286.60-45,507,429.90-20,134,619.40

Finding the Fourth Proportional to 30,338,286.60, 45,507,429.90 and 20,134,619.40

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Solution

The fourth proportional to 30,338,286.60, 45,507,429.90 and 20,134,619.40 is: 30,201,929.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,338,286.60 : 45,507,429.90 = 20,134,619.40 : x
  2. Step 2: Convert to fraction form
    30,338,286.60/45,507,429.90 = 20,134,619.40/x
  3. Step 3: Cross multiply
    30,338,286.60x = 45,507,429.90 × 20,134,619.40
  4. Step 4: Simplify right side
    30,338,286.60x = 916,274,780,908,680
  5. Step 5: Solve for x
    x = 916,274,780,908,680/30,338,286.60
  6. Step 6: Final answer
    x = 30,201,929.10

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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.