Home / 1,090,716,206.56-1,505,190,049.08-620,817,522.64

Finding the Fourth Proportional to 1,090,716,206.56, 1,505,190,049.08 and 620,817,522.64

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Solution

The fourth proportional to 1,090,716,206.56, 1,505,190,049.08 and 620,817,522.64 is: 856,729,139.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,716,206.56 : 1,505,190,049.08 = 620,817,522.64 : x
  2. Step 2: Convert to fraction form
    1,090,716,206.56/1,505,190,049.08 = 620,817,522.64/x
  3. Step 3: Cross multiply
    1,090,716,206.56x = 1,505,190,049.08 × 620,817,522.64
  4. Step 4: Simplify right side
    1,090,716,206.56x = 934,448,357,372,225,536
  5. Step 5: Solve for x
    x = 934,448,357,372,225,536/1,090,716,206.56
  6. Step 6: Final answer
    x = 856,729,139.76

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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.