Home / 489,636,402.75-734,551,535.70-139,885,448.28

Finding the Fourth Proportional to 489,636,402.75, 734,551,535.70 and 139,885,448.28

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Solution

The fourth proportional to 489,636,402.75, 734,551,535.70 and 139,885,448.28 is: 209,855,865.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,636,402.75 : 734,551,535.70 = 139,885,448.28 : x
  2. Step 2: Convert to fraction form
    489,636,402.75/734,551,535.70 = 139,885,448.28/x
  3. Step 3: Cross multiply
    489,636,402.75x = 734,551,535.70 × 139,885,448.28
  4. Step 4: Simplify right side
    489,636,402.75x = 102,753,070,856,156,928
  5. Step 5: Solve for x
    x = 102,753,070,856,156,928/489,636,402.75
  6. Step 6: Final answer
    x = 209,855,865.04

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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.