Home / 12,821,133,151.06-17,693,150,329.58-7,182,388,694.56

Finding the Fourth Proportional to 12,821,133,151.06, 17,693,150,329.58 and 7,182,388,694.56

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Solution

The fourth proportional to 12,821,133,151.06, 17,693,150,329.58 and 7,182,388,694.56 is: 9,911,688,881.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,821,133,151.06 : 17,693,150,329.58 = 7,182,388,694.56 : x
  2. Step 2: Convert to fraction form
    12,821,133,151.06/17,693,150,329.58 = 7,182,388,694.56/x
  3. Step 3: Cross multiply
    12,821,133,151.06x = 17,693,150,329.58 × 7,182,388,694.56
  4. Step 4: Simplify right side
    12,821,133,151.06x = 127,079,082,898,325,946,368
  5. Step 5: Solve for x
    x = 127,079,082,898,325,946,368/12,821,133,151.06
  6. Step 6: Final answer
    x = 9,911,688,881.25

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1.5x scale

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.