Home / 99,219,906.40-148,829,859.60-71,868,409.60

Finding the Fourth Proportional to 99,219,906.40, 148,829,859.60 and 71,868,409.60

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Solution

The fourth proportional to 99,219,906.40, 148,829,859.60 and 71,868,409.60 is: 107,802,614.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,219,906.40 : 148,829,859.60 = 71,868,409.60 : x
  2. Step 2: Convert to fraction form
    99,219,906.40/148,829,859.60 = 71,868,409.60/x
  3. Step 3: Cross multiply
    99,219,906.40x = 148,829,859.60 × 71,868,409.60
  4. Step 4: Simplify right side
    99,219,906.40x = 10,696,165,310,443,290
  5. Step 5: Solve for x
    x = 10,696,165,310,443,290/99,219,906.40
  6. Step 6: Final answer
    x = 107,802,614.40

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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.