Home / 154,530,420.84-213,253,678.08-84,915,819.72

Finding the Fourth Proportional to 154,530,420.84, 213,253,678.08 and 84,915,819.72

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Solution

The fourth proportional to 154,530,420.84, 213,253,678.08 and 84,915,819.72 is: 117,184,763.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,530,420.84 : 213,253,678.08 = 84,915,819.72 : x
  2. Step 2: Convert to fraction form
    154,530,420.84/213,253,678.08 = 84,915,819.72/x
  3. Step 3: Cross multiply
    154,530,420.84x = 213,253,678.08 × 84,915,819.72
  4. Step 4: Simplify right side
    154,530,420.84x = 18,108,610,882,468,196
  5. Step 5: Solve for x
    x = 18,108,610,882,468,196/154,530,420.84
  6. Step 6: Final answer
    x = 117,184,763.91

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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.