Home / 401,338,432.20-602,007,648.30-320,716,864.20

Finding the Fourth Proportional to 401,338,432.20, 602,007,648.30 and 320,716,864.20

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Solution

The fourth proportional to 401,338,432.20, 602,007,648.30 and 320,716,864.20 is: 481,075,296.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,338,432.20 : 602,007,648.30 = 320,716,864.20 : x
  2. Step 2: Convert to fraction form
    401,338,432.20/602,007,648.30 = 320,716,864.20/x
  3. Step 3: Cross multiply
    401,338,432.20x = 602,007,648.30 × 320,716,864.20
  4. Step 4: Simplify right side
    401,338,432.20x = 193,074,005,187,192,448
  5. Step 5: Solve for x
    x = 193,074,005,187,192,448/401,338,432.20
  6. Step 6: Final answer
    x = 481,075,296.30

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Double scale
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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.