Home / 528,238,602.70-728,955,401.03-293,283,222.19

Finding the Fourth Proportional to 528,238,602.70, 728,955,401.03 and 293,283,222.19

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Solution

The fourth proportional to 528,238,602.70, 728,955,401.03 and 293,283,222.19 is: 404,723,145.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,238,602.70 : 728,955,401.03 = 293,283,222.19 : x
  2. Step 2: Convert to fraction form
    528,238,602.70/728,955,401.03 = 293,283,222.19/x
  3. Step 3: Cross multiply
    528,238,602.70x = 728,955,401.03 × 293,283,222.19
  4. Step 4: Simplify right side
    528,238,602.70x = 213,790,388,844,693,024
  5. Step 5: Solve for x
    x = 213,790,388,844,693,024/528,238,602.70
  6. Step 6: Final answer
    x = 404,723,145.47

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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.