Home / 489,904,363.40-734,856,545.10-217,806,571.40

Finding the Fourth Proportional to 489,904,363.40, 734,856,545.10 and 217,806,571.40

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Solution

The fourth proportional to 489,904,363.40, 734,856,545.10 and 217,806,571.40 is: 326,709,857.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,904,363.40 : 734,856,545.10 = 217,806,571.40 : x
  2. Step 2: Convert to fraction form
    489,904,363.40/734,856,545.10 = 217,806,571.40/x
  3. Step 3: Cross multiply
    489,904,363.40x = 734,856,545.10 × 217,806,571.40
  4. Step 4: Simplify right side
    489,904,363.40x = 160,056,584,559,080,480
  5. Step 5: Solve for x
    x = 160,056,584,559,080,480/489,904,363.40
  6. Step 6: Final answer
    x = 326,709,857.10

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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.