Home / 459,653,803.74-689,476,161.78-210,588,413.04

Finding the Fourth Proportional to 459,653,803.74, 689,476,161.78 and 210,588,413.04

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Solution

The fourth proportional to 459,653,803.74, 689,476,161.78 and 210,588,413.04 is: 315,880,537.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,653,803.74 : 689,476,161.78 = 210,588,413.04 : x
  2. Step 2: Convert to fraction form
    459,653,803.74/689,476,161.78 = 210,588,413.04/x
  3. Step 3: Cross multiply
    459,653,803.74x = 689,476,161.78 × 210,588,413.04
  4. Step 4: Simplify right side
    459,653,803.74x = 145,195,690,738,160,480
  5. Step 5: Solve for x
    x = 145,195,690,738,160,480/459,653,803.74
  6. Step 6: Final answer
    x = 315,880,537.82

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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.