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Finding the Fourth Proportional to 505,203,320.20, 757,804,980.30 and 505,203,320.20

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Solution

The fourth proportional to 505,203,320.20, 757,804,980.30 and 505,203,320.20 is: 757,804,980.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,203,320.20 : 757,804,980.30 = 505,203,320.20 : x
  2. Step 2: Convert to fraction form
    505,203,320.20/757,804,980.30 = 505,203,320.20/x
  3. Step 3: Cross multiply
    505,203,320.20x = 757,804,980.30 × 505,203,320.20
  4. Step 4: Simplify right side
    505,203,320.20x = 382,845,592,111,655,552
  5. Step 5: Solve for x
    x = 382,845,592,111,655,552/505,203,320.20
  6. Step 6: Final answer
    x = 757,804,980.30

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.