Home / 154,616,900.16-231,913,288.80-89,879,412.72

Finding the Fourth Proportional to 154,616,900.16, 231,913,288.80 and 89,879,412.72

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Solution

The fourth proportional to 154,616,900.16, 231,913,288.80 and 89,879,412.72 is: 134,812,107.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,616,900.16 : 231,913,288.80 = 89,879,412.72 : x
  2. Step 2: Convert to fraction form
    154,616,900.16/231,913,288.80 = 89,879,412.72/x
  3. Step 3: Cross multiply
    154,616,900.16x = 231,913,288.80 × 89,879,412.72
  4. Step 4: Simplify right side
    154,616,900.16x = 20,844,230,199,307,756
  5. Step 5: Solve for x
    x = 20,844,230,199,307,756/154,616,900.16
  6. Step 6: Final answer
    x = 134,812,107.72

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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.