Home / 154,707,458.40-213,496,401.60-85,098,134.88

Finding the Fourth Proportional to 154,707,458.40, 213,496,401.60 and 85,098,134.88

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Solution

The fourth proportional to 154,707,458.40, 213,496,401.60 and 85,098,134.88 is: 117,435,486.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,707,458.40 : 213,496,401.60 = 85,098,134.88 : x
  2. Step 2: Convert to fraction form
    154,707,458.40/213,496,401.60 = 85,098,134.88/x
  3. Step 3: Cross multiply
    154,707,458.40x = 213,496,401.60 × 85,098,134.88
  4. Step 4: Simplify right side
    154,707,458.40x = 18,168,145,579,751,448
  5. Step 5: Solve for x
    x = 18,168,145,579,751,448/154,707,458.40
  6. Step 6: Final answer
    x = 117,435,486.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.