Home / 12,989,698,314.33-17,925,782,941.57-7,049,250,816.33

Finding the Fourth Proportional to 12,989,698,314.33, 17,925,782,941.57 and 7,049,250,816.33

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Solution

The fourth proportional to 12,989,698,314.33, 17,925,782,941.57 and 7,049,250,816.33 is: 9,727,965,729.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,989,698,314.33 : 17,925,782,941.57 = 7,049,250,816.33 : x
  2. Step 2: Convert to fraction form
    12,989,698,314.33/17,925,782,941.57 = 7,049,250,816.33/x
  3. Step 3: Cross multiply
    12,989,698,314.33x = 17,925,782,941.57 × 7,049,250,816.33
  4. Step 4: Simplify right side
    12,989,698,314.33x = 126,363,340,034,216,706,048
  5. Step 5: Solve for x
    x = 126,363,340,034,216,706,048/12,989,698,314.33
  6. Step 6: Final answer
    x = 9,727,965,729.18

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Double scale
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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.