Home / 528,745,766.82-729,637,171.59-293,788,393.38

Finding the Fourth Proportional to 528,745,766.82, 729,637,171.59 and 293,788,393.38

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Solution

The fourth proportional to 528,745,766.82, 729,637,171.59 and 293,788,393.38 is: 405,410,210.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,745,766.82 : 729,637,171.59 = 293,788,393.38 : x
  2. Step 2: Convert to fraction form
    528,745,766.82/729,637,171.59 = 293,788,393.38/x
  3. Step 3: Cross multiply
    528,745,766.82x = 729,637,171.59 × 293,788,393.38
  4. Step 4: Simplify right side
    528,745,766.82x = 214,358,932,391,753,472
  5. Step 5: Solve for x
    x = 214,358,932,391,753,472/528,745,766.82
  6. Step 6: Final answer
    x = 405,410,210.05

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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.