Home / 99,696,007.80-149,292,069.30-79,540,615.80

Finding the Fourth Proportional to 99,696,007.80, 149,292,069.30 and 79,540,615.80

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Solution

The fourth proportional to 99,696,007.80, 149,292,069.30 and 79,540,615.80 is: 119,109,916.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,696,007.80 : 149,292,069.30 = 79,540,615.80 : x
  2. Step 2: Convert to fraction form
    99,696,007.80/149,292,069.30 = 79,540,615.80/x
  3. Step 3: Cross multiply
    99,696,007.80x = 149,292,069.30 × 79,540,615.80
  4. Step 4: Simplify right side
    99,696,007.80x = 11,874,783,126,178,276
  5. Step 5: Solve for x
    x = 11,874,783,126,178,276/99,696,007.80
  6. Step 6: Final answer
    x = 119,109,916.12

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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.