Home / 420,451,907.09-576,009,475.29-404,732,305.13

Finding the Fourth Proportional to 420,451,907.09, 576,009,475.29 and 404,732,305.13

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Solution

The fourth proportional to 420,451,907.09, 576,009,475.29 and 404,732,305.13 is: 554,473,980.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,451,907.09 : 576,009,475.29 = 404,732,305.13 : x
  2. Step 2: Convert to fraction form
    420,451,907.09/576,009,475.29 = 404,732,305.13/x
  3. Step 3: Cross multiply
    420,451,907.09x = 576,009,475.29 × 404,732,305.13
  4. Step 4: Simplify right side
    420,451,907.09x = 233,129,642,707,963,424
  5. Step 5: Solve for x
    x = 233,129,642,707,963,424/420,451,907.09
  6. Step 6: Final answer
    x = 554,473,980.92

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.