Home / 20,358,052.30-30,537,078.45-18,126,000.10

Finding the Fourth Proportional to 20,358,052.30, 30,537,078.45 and 18,126,000.10

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Solution

The fourth proportional to 20,358,052.30, 30,537,078.45 and 18,126,000.10 is: 27,189,000.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,358,052.30 : 30,537,078.45 = 18,126,000.10 : x
  2. Step 2: Convert to fraction form
    20,358,052.30/30,537,078.45 = 18,126,000.10/x
  3. Step 3: Cross multiply
    20,358,052.30x = 30,537,078.45 × 18,126,000.10
  4. Step 4: Simplify right side
    20,358,052.30x = 553,515,087,038,407.88
  5. Step 5: Solve for x
    x = 553,515,087,038,407.88/20,358,052.30
  6. Step 6: Final answer
    x = 27,189,000.15

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1.5x scale

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.