Home / 102,146,898.99-140,925,885.84-78,632,627.34

Finding the Fourth Proportional to 102,146,898.99, 140,925,885.84 and 78,632,627.34

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Solution

The fourth proportional to 102,146,898.99, 140,925,885.84 and 78,632,627.34 is: 108,484,670.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,146,898.99 : 140,925,885.84 = 78,632,627.34 : x
  2. Step 2: Convert to fraction form
    102,146,898.99/140,925,885.84 = 78,632,627.34/x
  3. Step 3: Cross multiply
    102,146,898.99x = 140,925,885.84 × 78,632,627.34
  4. Step 4: Simplify right side
    102,146,898.99x = 11,081,372,663,816,104
  5. Step 5: Solve for x
    x = 11,081,372,663,816,104/102,146,898.99
  6. Step 6: Final answer
    x = 108,484,670.35

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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.