Home / 1,213,724,007.16-1,674,529,114.26-790,144,797.40

Finding the Fourth Proportional to 1,213,724,007.16, 1,674,529,114.26 and 790,144,797.40

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Solution

The fourth proportional to 1,213,724,007.16, 1,674,529,114.26 and 790,144,797.40 is: 1,090,132,896.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,724,007.16 : 1,674,529,114.26 = 790,144,797.40 : x
  2. Step 2: Convert to fraction form
    1,213,724,007.16/1,674,529,114.26 = 790,144,797.40/x
  3. Step 3: Cross multiply
    1,213,724,007.16x = 1,674,529,114.26 × 790,144,797.40
  4. Step 4: Simplify right side
    1,213,724,007.16x = 1,323,120,467,727,369,216
  5. Step 5: Solve for x
    x = 1,323,120,467,727,369,216/1,213,724,007.16
  6. Step 6: Final answer
    x = 1,090,132,896.71

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Double scale
Find fourth proportional to 1,213,724,008.16, 1,674,529,115.64 and 790,144,798.40
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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.