Home / 20,358,048.60-30,537,072.90-18,342,509.40

Finding the Fourth Proportional to 20,358,048.60, 30,537,072.90 and 18,342,509.40

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Solution

The fourth proportional to 20,358,048.60, 30,537,072.90 and 18,342,509.40 is: 27,513,764.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,358,048.60 : 30,537,072.90 = 18,342,509.40 : x
  2. Step 2: Convert to fraction form
    20,358,048.60/30,537,072.90 = 18,342,509.40/x
  3. Step 3: Cross multiply
    20,358,048.60x = 30,537,072.90 × 18,342,509.40
  4. Step 4: Simplify right side
    20,358,048.60x = 560,126,546,716,735.19
  5. Step 5: Solve for x
    x = 560,126,546,716,735.19/20,358,048.60
  6. Step 6: Final answer
    x = 27,513,764.10

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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.