Home / 10,991,223,868.26-15,129,595,531.79-9,579,100,100.70

Finding the Fourth Proportional to 10,991,223,868.26, 15,129,595,531.79 and 9,579,100,100.70

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Solution

The fourth proportional to 10,991,223,868.26, 15,129,595,531.79 and 9,579,100,100.70 is: 13,185,784,569.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,991,223,868.26 : 15,129,595,531.79 = 9,579,100,100.70 : x
  2. Step 2: Convert to fraction form
    10,991,223,868.26/15,129,595,531.79 = 9,579,100,100.70/x
  3. Step 3: Cross multiply
    10,991,223,868.26x = 15,129,595,531.79 × 9,579,100,100.70
  4. Step 4: Simplify right side
    10,991,223,868.26x = 144,927,910,081,999,339,520
  5. Step 5: Solve for x
    x = 144,927,910,081,999,339,520/10,991,223,868.26
  6. Step 6: Final answer
    x = 13,185,784,569.50

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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.