Home / 811,521,774.34-1,119,805,569.97-454,309,111.48

Finding the Fourth Proportional to 811,521,774.34, 1,119,805,569.97 and 454,309,111.48

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Solution

The fourth proportional to 811,521,774.34, 1,119,805,569.97 and 454,309,111.48 is: 626,893,682.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,521,774.34 : 1,119,805,569.97 = 454,309,111.48 : x
  2. Step 2: Convert to fraction form
    811,521,774.34/1,119,805,569.97 = 454,309,111.48/x
  3. Step 3: Cross multiply
    811,521,774.34x = 1,119,805,569.97 × 454,309,111.48
  4. Step 4: Simplify right side
    811,521,774.34x = 508,737,873,523,425,728
  5. Step 5: Solve for x
    x = 508,737,873,523,425,728/811,521,774.34
  6. Step 6: Final answer
    x = 626,893,682.47

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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.