Home / 403,587,235.40-605,380,853.10-199,513,891.40

Finding the Fourth Proportional to 403,587,235.40, 605,380,853.10 and 199,513,891.40

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Solution

The fourth proportional to 403,587,235.40, 605,380,853.10 and 199,513,891.40 is: 299,270,837.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,587,235.40 : 605,380,853.10 = 199,513,891.40 : x
  2. Step 2: Convert to fraction form
    403,587,235.40/605,380,853.10 = 199,513,891.40/x
  3. Step 3: Cross multiply
    403,587,235.40x = 605,380,853.10 × 199,513,891.40
  4. Step 4: Simplify right side
    403,587,235.40x = 120,781,889,781,032,768
  5. Step 5: Solve for x
    x = 120,781,889,781,032,768/403,587,235.40
  6. Step 6: Final answer
    x = 299,270,837.10

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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.