Home / 90,727,508.40-136,091,262.60-30,143,234.40

Finding the Fourth Proportional to 90,727,508.40, 136,091,262.60 and 30,143,234.40

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Solution

The fourth proportional to 90,727,508.40, 136,091,262.60 and 30,143,234.40 is: 45,214,851.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,727,508.40 : 136,091,262.60 = 30,143,234.40 : x
  2. Step 2: Convert to fraction form
    90,727,508.40/136,091,262.60 = 30,143,234.40/x
  3. Step 3: Cross multiply
    90,727,508.40x = 136,091,262.60 × 30,143,234.40
  4. Step 4: Simplify right side
    90,727,508.40x = 4,102,230,828,343,753
  5. Step 5: Solve for x
    x = 4,102,230,828,343,753/90,727,508.40
  6. Step 6: Final answer
    x = 45,214,851.60

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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.