Home / 811,521,763.41-1,119,805,554.92-454,309,100.51

Finding the Fourth Proportional to 811,521,763.41, 1,119,805,554.92 and 454,309,100.51

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Solution

The fourth proportional to 811,521,763.41, 1,119,805,554.92 and 454,309,100.51 is: 626,893,667.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,521,763.41 : 1,119,805,554.92 = 454,309,100.51 : x
  2. Step 2: Convert to fraction form
    811,521,763.41/1,119,805,554.92 = 454,309,100.51/x
  3. Step 3: Cross multiply
    811,521,763.41x = 1,119,805,554.92 × 454,309,100.51
  4. Step 4: Simplify right side
    811,521,763.41x = 508,737,854,393,936,000
  5. Step 5: Solve for x
    x = 508,737,854,393,936,000/811,521,763.41
  6. Step 6: Final answer
    x = 626,893,667.34

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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.